1.文本:"uname=alice&mobileIpt=110&birthday=1983-05-12"
2.json对象:{uanme:'vic',mobileIpt:'110',birthday:'2013-11-11'}
3.json数组:
[
{"name":"uname","value":"alice"},
{"name":"mobileIpt","value":"110"},
{"name":"birthday","value":"2012-11-11"}
]
第三种格式如果使用不当会产生一定的问题