JavaScript实现简单网页版计算器

    
        
        
        
    

    
        

            

                

                    

                        
                    
                

                

                    

                        
(
                        
)
                        
←
                        
C
                    
                    

                        
7
                        
8
                        
9
                        
*
                    
                    

                        
4
                        
5
                        
6
                        
-
                    
                    

                        
1
                        
2
                        
3
                        
+
                    
                    

                        
0
                        
.
                        
/
                        
=
                    
                
         
            
        
    

table{
    margin: 20px;
    padding: 1px;
}

th,input{
    height: 120px;
    width: 410px;
    background-color:rgb(233, 232, 232);
    text-align: right;
    font-size: 40px;
}


button{
    height: 100px;
    width: 100px;
    padding: 0px;
    font-size: 30px;
}

th,input,td,button{
    border: 0px;
}

.calculate{
    background-color: rgb(231, 231, 235);
}

.operate{
    color: coral;
}

button:hover{
    background-color: rgb(147, 241, 253);
}

var result = new Array();
var ops = "+-*/";

function arrToStr(arr) {
    var strResult = "";
    for (var i = 0; i  Priority(opStack[opStack.length - 1])) {
                opStack.push(midExpre[i]);
            }
            else {
                do {
                    suffixExpre.push(opStack.pop());
                } while (opStack.length > 0 && Priority(midExpre[i]) <= Priority(opStack[opStack.length - 1]));

                opStack.push(midExpre[i]);
            }
        }

        else {
            suffixExpre.push(midExpre[i]);
        }
    }

    while (opStack.length > 0) {
        suffixExpre.push(opStack.pop());
    }

    return suffixExpre;
}

function Priority(op) {
    var opPri = 0;
    switch (op) {
        case "+":
            opPri = 1;
            break;
        case "-":
            opPri = 1;
            break;
        case "*":
            opPri = 2;
            break;
        case "/":
            opPri = 2;
            break;

    }
    return opPri;
}

function suffixValue(suffixExpre) {
    var calStack = [];

    console.log(suffixExpre);
    for (var i = 0; i