菜鸟学堂
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源代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>菜鸟学堂</title> </head> <body> <p>修改 JSON 对象的值。</p> <p id="demo"></p> <script> var myObj, i, x = ""; myObj = { "name":"jb51", "alexa":10000, "sites": { "site1":"www.jb51.net", "site2":"edu.jb51.net", "site3":"m.jb51.net" } } myObj.sites.site1 = "www.google.com"; for (i in myObj.sites) { x += myObj.sites[i] + "<br>"; } document.getElementById("demo").innerHTML = x; </script> </body> </html>
运行结果
在线运行
菜鸟学堂 edu.jb51.net