摘要：
<h1>下拉切换效果</h1> <div id="dropdown"> <button >添加商品</button> <ul> <li>生活家居</li> <li>生活用品</li> <li>数码电器</li> <li>生活超市</li> <li>衣服鞋帽</li> </ul> </div> 手写插 阅读全文
posted @ 2017-03-06 11:17
suri&zh
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~function(){
var person=prompt('type your family number of members');
if(person>=2){
alert('you have a lovely family')
}else if(person==1){
alert('you are single');
}else{
alert('you are martian')
}
}();
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