<html>
<body>
<script type="text/javascript">
var str="ab:cd:ef:gh"
var txt="Hello World!"
document.write(txt.length)
document.write("<p>Big: " + txt.big().big().big() + "</p>")
document.write("<p>Small: " + txt.small() + "</p>")//设置字体大一号或者小一号
document.write("<p>Bold: " + txt.bold() + "</p>")
document.write("<p>Italic: " + txt.italics() + "</p>")//设置字体斜体或粗体
document.write("<p>Strike: " + txt.strike() + "</p>")//文字被杠掉,删除线
document.write("<p>Fontcolor: " +txt.fontcolor("Red") + "</p>")
document.write("<p>Fontsize: " + txt.fontsize(30) + "</p>")//设置字体颜色和大小
document.write("<p>Lowercase: " + txt.toLowerCase() + "</p>")
document.write("<p>Uppercase: " + txt.toUpperCase() + "</p>")//大小写转换
document.write(txt.replace(/World/,"Wow"))//替换文字
document.write(txt.indexOf("Hello") + "<br />")//0
document.write(txt.indexOf("World") + "<br />")//6
document.write(txt.indexOf("world"))//-1查询文本第一次出现的位置,如果没有的话,就返回-1
document.write(txt.match("Hello") + "<br />")//查找字符串中的字符,若有则返回字符
document.write(txt.match("World") + "<br />")//
document.write(txt.match("world") + "<br />")//没有的话则返回null
document.write(txt.substr(3) + "<br />")//从3为下标截取到结束
document.write(txt.substr(3,5) + "<br />")//从3为下标截取5个字符
document.write(txt.substring(3) + "<br />")//从3为下标截取到结束
document.write(txt.substring(3,7) + "<br />")//从3为下标截取到7为下标(不包括7)
document.write("<p>Link: " + txt.link("http://www.baidu.com") + "</p>")//给文字添加上超链接
document.write("分隔字符串"+str.split(":"))
document.write("分隔字符串"+txt.split("",3))//返回的数组长度为3
</script>
</body>
</html>