麻烦老师检查下

来源：3-19 编程练习

打不死的女小强

2018-01-27 17:17:56

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
<script>
    var a = "50px";
    var b = "px50";
    var c = "050px";
    var d = "50.12345";
    var e = "50.123px45";
    
    console.log(parseFloat(a));
    console.log(parseFloat(b));
    console.log(parseFloat(c));
    console.log(parseFloat(d));
    console.log(parseFloat(e));
</script>
</body>
</html>

运行结果