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来源：3-18 编程练习

三年没洗澡

2018-12-17 09:56:57

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>数据类型转换</title>
</head>
<body>
<script>
    // 补充代码
    var a="50px",
        b="px50",
        c="50px50",
        d="50.51";
    document.write(parseInt(a));
    document.write(parseInt(b));
    document.write(parseInt(c));
    document.write(parseInt(d));
    //打印结果：50NaN5050
</script>
</body>
</html>

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