<!DOCTYPE html>
<html>
<head>
    <title></title>
    <meta charset="utf-8">
</head>
<body>
<textarea id="txt">
海上生明月，天涯共此时
情人怨遥夜，竟夕起相思
灭烛怜光满，披衣觉露滋
不堪盈手赠，还寝梦佳期
</textarea>

<script type="text/javascript">

    //1 替换文本中中文
    var myString = new String("啦啦啦啦啦啦情人怨遥夜，竟夕起相思");
    var myRegExp=/([^\u0000-\u00FF])/g;
    var newString = myString.replace(myRegExp, "-[  ]-");
    document.write(newString);
    document.close();



    // 2 消除txt中换行
    var txt=document.getElementById("txt");
    var str=txt.value;

    function ReplaceSeperator(text) {
    var result = "";
    for (var i = 0; i < text.length; i++) {
        var c = text.substr(i, 1);
        if (c == ";" || c == "," || c == "，"||c=="。" || c == "\n")
            result = result + ",";
        else if (c != "\r")
            result = result + c;
    }
    // return result;
    console.log(result);
}
    ReplaceSeperator(str);


</script>

</body>
</html>

 可以用来将网易云上复制的歌词转换成没有空格的一段,哈哈