📄 tu2.22.htm
字号:
<HTML>
<HEAD>
<TITLE>使用 String 对象</TITLE>
</HEAD>
<BODY>
<SCRIPT LANGUANGE="JavaScript" TYPE="text/javascript">
<!--
myStr="Hello World!";
document.write('myStr="Hello World!"<P>')
document.write("<table>")
document.write("<tr><td>myStr.charAt(2)<td> = "+myStr.charAt(2))
document.write("<tr><td>myStr.charCodeAt(2)<td> = "+myStr.charCodeAt(2))
document.write("<tr><td>myStr.concat('HI,It\'s me!')<td> = "+myStr.concat('HI,It\'s me!'))
document.write("<tr><td>myStr.indexOf('o')<td> = "+myStr.indexOf("o"))
document.write("<tr><td>myStr.indexOf('o',5)<td> = "+myStr.indexOf('o',5))
document.write("<tr><td>myStr.lastIndexOf('o')<td> = "+myStr.lastIndexOf('o'))
document.write("<tr><td>myStr.lastIndexOf('o',5)<td> = "+myStr.lastIndexOf('o',5))
document.write("<tr><td>myStr.slice(0,5)<td> = "+myStr.slice(0,5))
document.write("<tr><td>myStr.substr(2,4)<td> = "+myStr.substr(2,4))
document.write("<tr><td>myStr.substring(2,20)<td> = "+myStr.substring(2,20))
document.write("<tr><td>myStr.substring(-1,10)<td> = "+myStr.substring(-1,10))
document.write("<tr><td>myStr.toString()<td> = "+myStr.toString())
document.write("<tr><td>String.toString()<td> = "+String.toString())
document.write("<tr><td>myStr.valueOf()<td> = "+myStr.valueOf())
document.write("</table><p>");
var myStr2=String.fromCharCode(78,79,80,90);
document.write("String.fromCharCode(78,79,80,90)="+myStr2)
-->
</SCRIPT>
</BODY>
</HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -