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>
    </div>
    <script src="./vue.js"></script>
    <script>
      var app = new Vue({
        el: "#app",
        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: "欧文",
          newList:[]
        },
        watch: {
          keywords:{
            immediate: true,
            deep: true,
            handler(val) {
              this.newList = this.arr.filter((item) => {
                return  item.name.indexOf(val) !== -1;
              })
            }
          }
          // keywords(newValue,oldValue) {
          //   console.log(newValue)
          //   console.log(oldValue)
          // }
        }
      });
    </script>
  </body>
</html>