Javascript中的字符串连接

来源：互联网发布：地方财政收入来源知乎编辑：程序博客网时间：2024/06/05 07:39

<pre name="code" class="javascript"><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title><script type="text/javascript">/*1．concat函数，将两个或者多个字符串连接成一个字符串首先看一下concat的语法variable.concat("string1","string2","string3","string4");*/var str1 = "aa"var str2 = "bb"var str3 = "cc"var str = str1.concat(str2,str3);alert(str);//或str = "";str = str.concat(str1,str2,str3);alert(str);//或str = "";str = str.concat("aa","bb","cc");alert(str);/*2. 通过加号（+）直接对字符串进行连接*/str = str1+str2+str3;alert(str);//或 声明一个变量来进行连接str = "";str += "hello";str += "world";document.write(str);/*3. 将字符串存入数组，然后调用join方法．将数组中的每个元素连接起来返回一个字符串.参数就是连接符.(默认连接符是",")使用该方法可以模拟一个StringBuilder*/var sArr = ["long"," time"," no"," see"];alert(sArr.join(""));</script></head><body></body></html>

0 0