添加项目文件。

ScientificCalculator.sln

@@ -0,0 +1,31 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.14.36127.28 d17.14
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ScientificCalculator", "ScientificCalculator\ScientificCalculator.vcxproj", "{5C991D9D-797E-4C35-8C97-E6F43099CBD6}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Debug|x64.ActiveCfg = Debug|x64
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Debug|x64.Build.0 = Debug|x64
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Debug|x86.ActiveCfg = Debug|Win32
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Debug|x86.Build.0 = Debug|Win32
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Release|x64.ActiveCfg = Release|x64
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Release|x64.Build.0 = Release|x64
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Release|x86.ActiveCfg = Release|Win32
+		{5C991D9D-797E-4C35-8C97-E6F43099CBD6}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {227C30D6-2F25-4EA4-B670-3C930B28DA7B}
+	EndGlobalSection
+EndGlobal

ScientificCalculator/Calc.cpp

@@ -0,0 +1,44 @@
+#include "Calc.h"
+#include <iostream>
+
+// <20><>̬<EFBFBD><CCAC>Ա<EFBFBD><D4B1>ʼ<EFBFBD><CABC>
+Tokenizer Calc::tokenizer;
+InfixToPostfix Calc::converter;
+PostfixEval Calc::evaluator;
+
+// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿڣ<D3BF><DAA3><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD> -> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+double Calc::eval(const string& expression) {
+    vector<Token> tokens = tokenizer.run(expression);
+    vector<Token> postfix = converter.run(tokens);
+    return evaluator.run(postfix);
+}
+
+// <20><>ȫ<EFBFBD><C8AB><EFBFBD><EFBFBD><EFBFBD>ӿڣ<D3BF><DAA3><EFBFBD> try-catch <20><>װ<EFBFBD><D7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD> bool <20><>־
+bool Calc::safeEval(const string& expr, double& res) {
+    try {
+        res = eval(expr);
+        return true;
+    }
+    catch (const exception& e) {
+        cerr << "[Error] " << e.what() << endl;
+        return false;
+    }
+}
+
+// <20><><EFBFBD>Խӿڣ<D3BF><DAA3><EFBFBD>ӡ<EFBFBD>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>token <20>б<EFBFBD> <20><> <20><>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD>
+void Calc::debug(const string& expr) {
+    try {
+        vector<Token> tokens = tokenizer.run(expr);
+        cout << "[Token List]" << endl;
+        for (const auto& t : tokens) cout << t.value << " ";
+        cout << endl;
+
+        vector<Token> postfix = converter.run(tokens);
+        cout << "[Postfix]" << endl;
+        for (const auto& t : postfix) cout << t.value << " ";
+        cout << endl;
+    }
+    catch (const exception& e) {
+        cerr << "[Debug Error] " << e.what() << endl;
+    }
+}

ScientificCalculator/Calc.h

@@ -0,0 +1,28 @@
+#ifndef CALC_H
+#define CALC_H
+
+#include"Tokenizer.h"
+#include"InfixToPostfix.h"
+#include"PostfixEval.h"
+#include<optional>
+#include<unordered_map>
+
+using namespace std;
+
+class Calc {
+public:
+	//<2F><><EFBFBD>ӿں<D3BF><DABA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ؼ<EFBFBD><D8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	static double eval(const string& expresssion);
+
+	//<2F><>ȫ<EFBFBD>ӿڣ<D3BF><DAA3><EFBFBD><EFBFBD>쳣<EFBFBD><ECB3A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>optional
+	static bool safeEval(const string& expr,double& res);
+
+	//<2F><><EFBFBD>Ժ<EFBFBD><D4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӡtoken<65>б<EFBFBD><D0B1><EFBFBD><EFBFBD><EFBFBD>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ
+	static void debug(const string& expr);
+private:
+	static Tokenizer tokenizer;
+	static InfixToPostfix converter;
+	static PostfixEval evaluator;
+};
+
+#endif

ScientificCalculator/InfixToPostfix.cpp

@@ -0,0 +1,74 @@
+#include "InfixToPostfix.h"
+#include <stdexcept>
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>沨<EFBFBD><E6B2A8><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽת<CABD><D7AA>Ϊ<EFBFBD><CEAA>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ
+vector<Token> InfixToPostfix::run(const vector<Token>& infix) {
+    vector<Token> output;// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ
+    stack<Token> opStack;//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ
+
+    for (const Token& token : infix) {
+        if (token.is_num() || token.is_var()) 
+            //<2F><><EFBFBD>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD>ӷ<EFBFBD><D3B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+            output.push_back(token);
+        else if (token.is_fun()) 
+            //<2F><><EFBFBD><EFBFBD>ѹ<EFBFBD><D1B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD>ߣ<EFBFBD>
+            opStack.push(token);
+        else if (token.is_ope()) {
+            //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD>߻<EFBFBD><DFBB><EFBFBD>ͬ<EFBFBD>ҽ<EFBFBD><D2BD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+            while (!opStack.empty() && opStack.top().is_ope() &&
+                (precedence(opStack.top()) > precedence(token) ||
+                    (precedence(opStack.top()) == precedence(token) && associativity(token) == Associativity::Left))) {
+                output.push_back(opStack.top());
+                opStack.pop();
+            }
+            //<2F><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ
+            opStack.push(token);
+        }
+        else if (token.is_LP()) 
+            //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD>ջ
+            opStack.push(token);
+        else if (token.is_RP()) 
+            //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+            pop_ULP(opStack, output);
+    }
+
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󣬵<EFBFBD><F3A3ACB5><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    while (!opStack.empty()) {
+        if (opStack.top().is_LP() || opStack.top().is_RP())
+            throw runtime_error("<EFBFBD><EFBFBD><EFBFBD>Ų<EFBFBD>ƥ<EFBFBD><EFBFBD>");//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ų<EFBFBD>ƥ<EFBFBD><C6A5>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+        output.push_back(opStack.top());
+        opStack.pop();
+    }
+
+    return output;//<2F><><EFBFBD>غ<EFBFBD>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>
+}
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>Խ<EFBFBD><D4BD>
+int InfixToPostfix::precedence(const Token& token) const {
+    return token.precedence;
+}
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD>/<2F><>
+Associativity InfixToPostfix::associativity(const Token& token) const {
+    return token.associativity;
+}
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><D6AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+void InfixToPostfix::pop_ULP(stack<Token>& opStack, vector<Token>& output) {
+    //<2F><><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    while (!opStack.empty() && !opStack.top().is_LP()) {
+        output.push_back(opStack.top());
+        opStack.pop();
+    }
+
+    //<2F><><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׳<EFBFBD><D7B3>쳣
+    if (opStack.empty())
+        throw runtime_error("<EFBFBD><EFBFBD><EFBFBD>Ų<EFBFBD>ƥ<EFBFBD>䣺ȱʧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
+    opStack.pop(); // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮ǰ<D6AE>Ǻ<EFBFBD><C7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><D2B2>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    if (!opStack.empty() && opStack.top().is_fun()) {
+        output.push_back(opStack.top());
+        opStack.pop();
+    }
+}

ScientificCalculator/InfixToPostfix.h

@@ -0,0 +1,27 @@
+#ifndef INFIX_TO_POSTFIX_H
+#define INFIX_TO_POSTFIX_H
+
+#include"Token.h"
+#include<vector>
+#include<stack>
+
+using namespace std;
+
+class InfixToPostfix {
+public:
+	//<2F><>ת<EFBFBD><D7AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽת<CABD><D7AA>Ϊ<EFBFBD><CEAA>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ
+	vector<Token> run(const vector<Token>& infix);
+
+private:
+	//<2F><><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȼ<EFBFBD>
+	int precedence(const Token& token) const;
+
+	//<2F>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD>/<2F>ң<EFBFBD>
+	Associativity associativity(const Token& token) const;
+
+	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ջ<EFBFBD>е<EFBFBD><D0B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	void pop_ULP(stack<Token>& opStack, vector<Token>& output);
+
+};
+
+#endif

ScientificCalculator/PostfixEval.cpp

@@ -0,0 +1,97 @@
+#include"PostfixEval.h"
+#include<algorithm>
+#include<cctype>
+
+double PostfixEval::run(const std::vector<Token>& postfix, const unordered_map<string, double>& vars) {
+	stack<double> stk;
+
+	for (const auto& token : postfix) {
+		if (token.is_num())
+			//<2F><><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊdouble<6C><65>ջ
+			stk.push(stod(token.value));
+		else if (token.is_var()) {
+			//<2F><><EFBFBD>ұ<EFBFBD><D2B1><EFBFBD>ӳ<EFBFBD><D3B3><EFBFBD><EFBFBD>
+			auto it = vars.find(token.value);
+			// ֧<><D6A7><EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><C3B3><EFBFBD> PAI <20><> e
+			
+			if (it == vars.end()) {
+				if (token.value == "PAI")
+					stk.push(2.0 * std::asin(1.0));  // <20><> = 2 * arcsin(1)
+				else if (token.value == "e")
+					stk.push(std::exp(1.0));         // e = exp(1)
+				else
+					throw runtime_error("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><EFBFBD><EFBFBD>壺" + token.value);
+			}
+			else stk.push(it->second);
+		}
+		else if (token.is_ope()) {
+			//ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>ж<EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD>
+			if (stk.size() < 2)	throw runtime_error("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
+			double b = stk.top();
+			stk.pop();
+			double a = stk.top();
+			stk.pop();
+			double res = apply_BO(token.value, a, b);
+			stk.push(res);
+		}
+		else if (token.is_fun()) {
+			//ȡ<><C8A1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4>һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ⱥ<EFBFBD><C8BA><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD>
+			if (stk.empty())	throw runtime_error("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
+			double x = stk.top();
+			stk.pop();
+			double res = apply_UF(token.value, x);
+			stk.push(res);
+		}
+		else
+			throw runtime_error("δ֪Token<EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
+	}
+
+	if (stk.size() != 1)
+		throw runtime_error("<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD>󣬼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD>Ψһ");
+
+	return stk.top();
+}
+
+//<2F><><EFBFBD>ж<EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+double PostfixEval::apply_BO(const string& op, double a, double b) {
+	if (op == "+")	return a + b;
+	if (op == "-")	return a - b;
+	if (op == "*")	return a * b;
+	if (op == "/") {
+		if (b == 0) throw runtime_error("<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0");
+		return a / b;
+	}
+	if (op == "^")	return pow(a, b);
+	if (op == "%") {
+		if (b == 0) throw runtime_error("ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>");
+		return std::fmod(a, b);
+	}
+	throw runtime_error("δ֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>" + op);
+}
+
+//<2F><><EFBFBD><EFBFBD>һԪ<D2BB><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ⱥ<EFBFBD><C8BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+double PostfixEval::apply_UF(const string& func, double x) {
+	string f = func;
+	transform(f.begin(), f.end(), f.begin(), ::tolower);
+
+	if (f == "sin")	return sin(x);
+	if (f == "cos")	return cos(x);
+	if (f == "tan")	return tan(x);
+	if (f == "sqrt") {
+		if (x < 0)	
+			throw runtime_error("sqrt<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>");
+		return sqrt(x);
+	}
+	if (f == "log") {
+		if (x <= 0)
+			throw runtime_error("log<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0");
+		return log(x);
+	}
+	if (f == "exp")	return exp(x);
+	if (f == "abs")	return fabs(x);
+	if (f == "asin")	return asin(x);
+	if (f == "acos")	return acos(x);
+	if (f == "atan")	return atan(x);
+
+	throw runtime_error("δ֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>" + func);
+}

ScientificCalculator/PostfixEval.h

@@ -0,0 +1,25 @@
+#ifndef POSTFIXEVAL_H
+#define POSYFIXEVAL_H
+
+#include "Token.h"
+#include <vector>
+#include <stack>
+#include <cmath>
+#include <stdexcept>
+#include<unordered_map>
+
+using namespace std;
+class PostfixEval {
+public:
+	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD>׺<EFBFBD><D7BA><EFBFBD><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
+	double run(const std::vector<Token>& postfix, const unordered_map<string, double>& vars = {});
+
+private:
+	//Ӧ<><D3A6><EFBFBD>ڶ<EFBFBD>Ԫ<EFBFBD><D4AA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>+<2B><>-<2D><>*<2A><>/<2F><>^
+	double apply_BO(const string& op, double a, double b);
+
+	//Ӧ<><D3A6><EFBFBD><EFBFBD>ҽԺ<D2BD><D4BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ⱥ<EFBFBD><C8BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>sin, cos, log
+	double apply_UF(const string& func, double x);
+};
+
+#endif

ScientificCalculator/ScientificCalculator.vcxproj

@@ -0,0 +1,142 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
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ScientificCalculator/ScientificCalculator.vcxproj.filters

@@ -0,0 +1,51 @@
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+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
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+    </Filter>
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+      <Filter>源文件</Filter>
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+      <Filter>源文件</Filter>
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+      <Filter>源文件</Filter>
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+    <ClCompile Include="Calc.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="main.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="Token.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="Tokenizer.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="InfixToPostfix.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="PostfixEval.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="Calc.h">
+      <Filter>头文件</Filter>
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+  </ItemGroup>
+</Project>

ScientificCalculator/Token.h

@@ -0,0 +1,52 @@
+#ifndef TOKEN_H
+#define TOKEN_H
+
+#include<string>
+
+using namespace std;
+//<2F>Ǻ<EFBFBD><C7BA><EFBFBD><EFBFBD><EFBFBD>
+enum class TokenType {
+	Number,
+	Operator,
+	LeftParen,
+	RightParen,
+	Function,
+	Variable
+};
+
+//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+enum class Associativity {
+	Left,
+	Right,
+	None
+};
+
+//Token<65>ṹ<EFBFBD><E1B9B9>
+struct Token {
+	TokenType type;//<2F>Ǻ<EFBFBD><C7BA><EFBFBD><EFBFBD><EFBFBD>
+	string value;  //ʵ<><CAB5><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>
+	int precedence = -1; //<2F><><EFBFBD>ȼ<EFBFBD><C8BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD><EFBFBD><EFBFBD>Ч
+	Associativity associativity = Associativity::None; //<2F><><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͺ<EFBFBD><CDBA><EFBFBD><EFBFBD><EFBFBD>Ч
+	
+	//<2F><><EFBFBD>캯<EFBFBD><ECBAAF>
+	Token(TokenType t, const string& v,
+		int p = -1, Associativity assoc = Associativity::None)
+		:type(t), value(v), precedence(p), associativity(assoc) {}
+
+	//<2F><><EFBFBD><EFBFBD><EFBFBD>жϷ<D0B6><CFB7><EFBFBD>
+
+	// <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD> "3.14", "42"<22><>
+	bool is_num() const { return type == TokenType::Number; }
+	// <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "+", "-", "*", "/"<22><>
+	bool is_ope() const { return type == TokenType::Operator; }
+	// <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "sin", "cos", "log"<22><>
+	bool is_fun() const { return type == TokenType::Function; }
+	// <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "("<22><><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD>
+	bool is_LP() const { return type == TokenType::LeftParen; }
+	// <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ")"<22><><EFBFBD><EFBFBD><EFBFBD>ڱ<EFBFBD><DAB1><EFBFBD>ʽ<EFBFBD><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	bool is_RP() const { return type == TokenType::RightParen; }
+	// <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> "x", "y"<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ֧<D5B9>ַ<EFBFBD><D6B7>Ŵ<EFBFBD><C5B4><EFBFBD><EFBFBD><EFBFBD>
+	bool is_var()const { return type == TokenType::Variable; }
+
+};
+#endif

ScientificCalculator/Tokenizer.cpp

@@ -0,0 +1,115 @@
+#include"Tokenizer.h"
+#include<cctype>
+#include<stdexcept>
+
+using namespace std;
+
+vector<Token> Tokenizer::run(const string& expr) {
+	expression = expr;
+	pos = 0;
+	vector<Token> tokens;
+
+    // <20><>ѭ<EFBFBD><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD>ʽ
+    while (pos < expression.length()) {
+        skipWhitespace();// <20><><EFBFBD><EFBFBD><EFBFBD>հ<EFBFBD><D5B0>ַ<EFBFBD>
+        if (pos >= expression.length()) break;
+
+        char current = expression[pos];
+
+        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD>һԪ<D2BB><D4AA><EFBFBD>ſ<EFBFBD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+        if (is_dig(current) || (current == '-' && is_UMC(tokens))) 
+            tokens.push_back(readNumber());
+
+        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+        else if (is_let(current)) 
+            tokens.push_back(readIdentifier());
+
+        // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+        else 
+            tokens.push_back(readOperatorOrParen());
+    }
+
+    return tokens;
+}
+
+void Tokenizer::skipWhitespace() {
+    // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>пո<D0BF><D5B8><EFBFBD><EFBFBD>Ʊ<EFBFBD><C6B1><EFBFBD><EFBFBD>ȿհ<C8BF><D5B0>ַ<EFBFBD>
+    while (pos < expression.length() && isspace(expression[pos]))
+        ++pos;
+}
+
+Token Tokenizer::readNumber() {
+    size_t start = pos;
+    bool hasDecimal = false;// <20><><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD>ֹ<EFBFBD>
+
+    if (expression[pos] == '-')
+        ++pos;  // <20><><EFBFBD><EFBFBD>һԪ<D2BB><D4AA><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+    while (pos < expression.length() && (is_dig(expression[pos]) || expression[pos] == '.')) {
+        if (expression[pos] == '.') {
+            if (hasDecimal)
+                throw runtime_error("<EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD>ʽ<EFBFBD><EFBFBD>Ч<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С<EFBFBD><EFBFBD><EFBFBD><EFBFBD>");// С<><D0A1><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><D8B8><EFBFBD><EFBFBD><EFBFBD>
+            hasDecimal = true;
+        }
+        ++pos;
+    }
+
+    string numberStr = expression.substr(start, pos - start);
+    return Token(TokenType::Number, numberStr);// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Token
+}
+
+Token Tokenizer::readIdentifier() {
+    size_t start = pos;
+
+    // <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    while (pos < expression.length() && is_let(expression[pos]))
+        ++pos;
+
+    string name = expression.substr(start, pos - start);
+
+    //ʶ<><CAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+    skipWhitespace();
+    if (pos < expression.length() && expression[pos] == '(') 
+        return Token(TokenType::Function, name);
+    else 
+        return Token(TokenType::Variable, name);
+}
+
+Token Tokenizer::readOperatorOrParen() {
+    char c = expression[pos++];  // <20><>ȡ<EFBFBD><C8A1>ǰ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>
+
+    // <20>ж<EFBFBD><D0B6>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ Token
+    switch (c) {
+    case '+': return Token(TokenType::Operator, "+", 1, Associativity::Left);
+    case '-': return Token(TokenType::Operator, "-", 1, Associativity::Left);
+    case '*': return Token(TokenType::Operator, "*", 2, Associativity::Left);
+    case '/': return Token(TokenType::Operator, "/", 2, Associativity::Left);
+    case '^': return Token(TokenType::Operator, "^", 3, Associativity::Right);
+    case '(': return Token(TokenType::LeftParen, "(");
+    case ')': return Token(TokenType::RightParen, ")");
+    default:
+        throw runtime_error(string("δ֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD> ") + c);  // δ֪<CEB4>ַ<EFBFBD><D6B7><EFBFBD><EFBFBD><EFBFBD>
+    }
+}
+
+bool Tokenizer::is_UMC(const vector<Token>& tokens) {
+    // <20><><EFBFBD><EFBFBD><EFBFBD>DZ<EFBFBD><C7B1><EFBFBD>ʽ<EFBFBD><CABD>ͷ<EFBFBD><CDB7><EFBFBD><EFBFBD>ǰһ<C7B0><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ţ<EFBFBD><C5A3><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ΪһԪ
+    if (tokens.empty()) return true;
+    Token last = tokens.back();
+    return last.is_ope() || last.is_LP();
+}
+
+bool Tokenizer::is_dig(char c) const {
+    // <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
+    return std::isdigit(static_cast<unsigned char>(c));
+}
+
+bool Tokenizer::is_let(char c) const {
+    // <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>ΪӢ<CEAA><D3A2><EFBFBD><EFBFBD>ĸ
+    return std::isalpha(static_cast<unsigned char>(c));
+}
+
+bool Tokenizer::is_OpeCh(char c) const {
+    // <20>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
+    return c == '+' || c == '-' || c == '*' || c == '/' || c == '^';
+}

ScientificCalculator/Tokenizer.h

@@ -0,0 +1,40 @@
+#ifndef TOKENIZER_H
+#define TOKENIZER_H
+
+#include<string>
+#include<vector>
+#include"Token.h"
+
+using namespace std;
+
+class Tokenizer {
+public:
+	//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ַ<EFBFBD><D6B7><EFBFBD>ת<EFBFBD><D7AA>ΪToken<65><6E><EFBFBD><EFBFBD>
+	vector<Token> run(const string& expr);
+
+private:
+	string expression; //<2F><>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ı<EFBFBD><C4B1><EFBFBD>ʽ
+	size_t pos = 0;   //<2F><>ǰָ<C7B0><D6B8>λ<EFBFBD><CEBB>
+
+	//<2F><><EFBFBD>ߺ<EFBFBD><DFBA><EFBFBD>:<3A><><EFBFBD><EFBFBD><EFBFBD>ո<EFBFBD><D5B8>ַ<EFBFBD>
+	void skipWhitespace();
+
+	//<2F><>ȡһ<C8A1><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֣<EFBFBD><D6A3><EFBFBD>С<EFBFBD><D0A1><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>㡢<EFBFBD><E3A1A2><EFBFBD>ܵ<EFBFBD>һԪ<D2BB><D4AA><EFBFBD>ţ<EFBFBD>
+	Token readNumber();
+
+	//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<28><>sin<69><6E>cos<6F><73>log<6F><67>)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>x<EFBFBD><78>y<EFBFBD><79>
+	Token readIdentifier();
+	
+	//<2F><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	Token readOperatorOrParen();
+
+	//<2F>жϵ<D0B6>ǰλ<C7B0><CEBB><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>һԪ<D2BB><D4AA><EFBFBD>ŵ<EFBFBD><C5B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	bool is_UMC(const vector<Token>& tokens);
+
+	//<2F>ַ<EFBFBD><D6B7>жϸ<D0B6><CFB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+	bool is_dig(char c)const;
+	bool is_let(char c)const;
+	bool is_OpeCh(char c)const;
+};
+
+#endif

ScientificCalculator/main.cpp

@@ -0,0 +1,29 @@
+#include <iostream>
+#include<string>
+#include "Calc.h"
+
+using namespace std;
+
+int main() {
+    string input;
+    cout << "<EFBFBD><EFBFBD>ѧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD> q <20>˳<EFBFBD>)<29><>\n";
+
+    while (true) {
+        cout << "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ > ";
+        getline(cin, input);
+
+        if (input == "q" || input == "quit")
+            break;
+
+        double result;
+        if (Calc::safeEval(input, result)) {
+            cout << "= " << result << endl;
+        }
+        else {
+            cout << "[<5B><><EFBFBD><EFBFBD>] <20><><EFBFBD><EFBFBD>ʽ<EFBFBD>޷<EFBFBD><DEB7><EFBFBD><EFBFBD><EFBFBD>\n";
+        }
+    }
+
+    cout << "<EFBFBD><EFBFBD>лʹ<EFBFBD>ã<EFBFBD><EFBFBD>ټ<EFBFBD><EFBFBD><EFBFBD>" << endl;
+    return 0;
+}