编写一个简易计算器的源代码

AStack.h

#ifndef ASTACK_HEADER #define ASTACK_HEADER #include using namespace std;

template class AStack {

private:

int size; int top; Elem* listArray; AStack()

{ size = 100; top = 0; listArray = new Elem[100]; } ~AStack()

{ delete [] listArray; } void clear() { top = 0; } bool push(Elem& item) { }

bool pop(Elem& it) { }

bool topValue(Elem& it) const { }

int length() const { return top; }

if (top == 0) return false;

else { it = listArray[top - 1]; return true; } if (top == 0) return false;

else { it = listArray[--top]; return true; } if (top == size) return false;

else { listArray[top++] = item; return true; }

public:

}; #endif

Function.cpp

#include \#include \#include #include

void calUserInfo() { }

int isp(char& ch) {

switch(ch) { case '=':

return 0; break;

cout<<\ 智能计算器V1.0*\cout<<\cout<<\cout<<\cout<<\cout<<\cout<<\

case '+': case '-':

return 3; break;

case '*': case '/': case '%':

return 5;

}

break; return 1; break; return 8; break;

case '(':

case ')':

case '^': case '&': }

return 7; break;

int osp(char& ch) {

{ case '=':

return 0; break; switch(ch)

case '+': case '-':

return 2; break;

case '*': case '/': case '%':

return 4; break; return 8; break;

case '(':

case ')':

}

return 1; break;

case '^': case '&': }

return 6; break;

double extract(double x,double y) { }

bool cal(char op, double x, double y, double& r) {

int o = 0; switch(op) { case '-':

r = x - y; break; r = x + y; break; r = x / y; break;

(int) o = (int)x % (int)y; r = (double)o; break; r = x * y; return pow(x,1/y);

case '+':

case '/':

case '%':

case '*':

}

}

break; r = extract(x,y); break; r = pow(x,y); break;

case '&':

case '^':

return true;

bool isDigit(char ch) { }

bool isPoint(char ch) { }

bool isOperator(char ch) { }

double turnDigit(char ch)

if ((ch == '=') || (ch == '-') || (ch == '+') || (ch == '(') || (ch == ')') || (ch == '*') ||

(ch == '&') ||(ch == '/') ||(ch == '%') ||(ch == '^')) return true; if (ch == '.')

return true; else return false;

if (((int)ch >= 48) && ((int)ch <= 57))

return true; else return false;

else return false;

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