lovecoding
/
VIP32


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <body>
    <div id="app">
      关键字搜索:
      <input type="text" placeholder="请输入关键字" v-model="keywords" />
      <br />
      <div id="main" v-for="(item,index) in newList" :key="index">
        {{index + 1}}.我叫{{item.name}}--今年{{item.age}}了--我是{{item.sex}}孩
      </div>
      <!-- @click 点击事件 -->
      <button  @click="sortType = 1">升序</button>
      <button  @click="sortType = 2">降序</button>
      <button  @click="sortType = 0">默认顺序</button>
    </div>
    <script src="./vue.js"></script>
    <script>
      var app = new Vue({
        data: {
          arr: [
            {
              name: "Lucy",
              age: 11,
              sex: "女",
            },
            {
              name: "LiLi",
              age: 31,
              sex: "男",
            },
            {
              name: "八戒",
              age: 21,
              sex: "男",
            },
            {
              name: "八卦",
              age: 23,
              sex: "男",
            },
            {
              name: "孙悟空",
              age: 27,
              sex: "男",
            },
            {
              name: "唐僧",
              age: 33,
              sex: "女",
            },
          ],
          keywords: "",
          person: [],
          sortType: 0
        },
        computed:{
            newList() {
               this.person = this.arr.filter((item) => {
                    return item.name.indexOf(this.keywords) !== -1
                })
                /**
                 * 升序 降序
                 * sort
                */
                if(this.sortType) {
                    // 排序
                    this.person.sort((a,b)=>{
                        // if(this.sortType === 1) {
                        //     console.log("111")
                        //     return b.age - a.age;
                        // } else if(this.sortType === 2) {
                        //     console.log("222")
                        //     return (a.age - b.age);
                        // }
                        // vue2.0框架 数据变化 视图未更新 ？ 需要通过数据劫持去解决
                        return this.sortType === 1 ? b.age - a.age : a.age - b.age;
                    })
                }
                console.log(this.person,'333')
                return this.person;
            }
        },
        methods: {
            upSort() {
                console.log(this.person,'3333')
                this.person = this.person.sort((a,b) => {
                    return a.age - b.age;
                })
            }
        },
      }).$mount("#app");
    </script>
  </body>
</html>