老师有个问题

来源：3-18 编程练习

Redamancy_Y6

2020-01-16 15:16:13

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>数据类型转换</title>
</head>
<body>
<script>
    // 补充代码
    var one="50px",two="px50",three="50px50",four="50.51";
    console.log(parseInt(one));
    console.log(parseInt(two));
    console.log(parseInt(three));
    console.log(parseInt(four));
</script>
</body>
</html>

老师，为什么东西都显示出来了下面还出错呢？