lovecoding
/
Web1020


			
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        // x++ 先赋值 后自增
        // x-- 先赋值 后自减
        var a = 5;
        var w = a--;
        // var y = a++;
        console.log(a,w);


        var x =3;
        // ++x 先自增 后赋值
        // --x 先自减 后赋值
        // var v = --x;
        console.log(x,w);
        // var z = ++x;
        var c = --x;
        console.log(x,c);
    </script>
</body>
</html>