<html>
<body>
<script type="text/javascript">
var txt="wo li ge ca ca ca!";
document.write(txt.length);
</script>
</body>
</html>
JavaScript 返回字符串长度 【每日一段代码79】
html5
<html>
<body>
<script type="text/javascript">
var txt="wo li ge ca ca ca!";
document.write(txt.length);
</script>
</body>
</html>