修复错误，补全基本功能 - #20

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Nutlee wants to merge 6 commits into

xfhxbb:masterfrom

Commits on Aug 30, 2016

1.增加点击空白处控件消失 2.init方法力可以初始化回调函数，同时取到两个值 3. init后return this
Nutlee
committed
f085c78

Commits on Sep 6, 2016

1. 增加成功后回调 2. 增加点击空白处收起控件 2. 增加 return this
Nutlee
committed
913f383

Commits on Dec 29, 2016

支持只有省市，增加onclose钩子，优化代码
 Nutlee
committed
d743b31
1.增加只显示2列 2.修复多个错误
 Nutlee
committed
4f08015
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Nutlee
committed
2209ad5
修改说明
 Nutlee
committed
c5d0a9e