UC知道关于js的问题
来源：百度知道 编辑：UC知道 时间：2024/05/29 05:00:08
var string1 = "hello";
var string2 = "hello";
var str1 = new String(string1);
var str2 = new String(string2);
if (str2 == str1)它的结果为false
为什么str1不等于str2呢？
var string2 = "hello";
var str1 = new String(string1);
var str2 = new String(string2);
if (str2 == str1)它的结果为false
为什么str1不等于str2呢？
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
<script type="text/javascript">
<!--
window.onload = function (){
var string1 = "hello";
var string2 = "hello";
var str1 = new String(string1);
var