Share jquery all selection and inverse selection examples

This demo is suitable for comrades who are just learning jQuery.

On average, I eat a certain Licun rice roll 4 times a week at night, so the content is the ones I often order at night. Usually I eat for 14 yuan.

The effect is as shown:

 1 <ul id='food'> 2

8元 红豆沙

5元 青菜肠

2元 加底 7元 鸡蛋青菜粥

6元 白灼鲜蔬菜 7元 黄金南瓜粥

3元 卤蛋

<input type="button" value='全选' id='selectAll'>13 <input type="button" value='全不选' id='unselectAll'>14

<input type="button" value='反选' id='reverse'>15 <input type="button" value='获得选中的值' id='getnum'>16 div>

1  2 

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