效果

 

核心代码

//对数组进行过滤，返回数组中每一想满足name值包括变量query的

let result = array.filter(item => {

      return item.name.includes(query);

});

完整代码

wxml

<input type="text" placeholder="请输入名称" placeholder-style="color:black" bindconfirm="search" />
<view class="all">
  <view class="item_all" wx:for="{{info}}" wx:key="index">
    <view class='position'>
      <view class="content">
        <view class="vv_1">序号：{{item.id}}</view>
        <view class="vv_1">名称：{{item.name}}</view>
        <view class="vv_1">年龄：{{item.age}}</view>
      </view>
    </view>
  </view>
</view>

wxss

/* 搜索框 */
input {
  background-color: rgb(212, 212, 212);
  padding: 2%;
  margin-bottom: 5%;
}

/* 列表 */
.all {
  margin-bottom: 20%;
}

.item_all {
  /* border: 1px solid black; */
  margin-bottom: 3%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.position {
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 95%;
  border-radius: 10px;
  background-color: #fff;
  box-shadow: 2px 2px 2px gainsboro;
}

.content {
  padding: 5%;
}

.vv_1 {
  word-break: break-all;
  padding: 2px 0;
}

js

Page({
  data: {
    //完整数据
    fixed_info: [{
      id:1,
      name:'张三',
      age:23
    }, {
      id:2,
      name:'李四',
      age:26
    }, {
      id:3,
      name:'王五',
      age:24
    }, {
      id:4,
      name:'张晓',
      age:21
    }], 
    //展示数据
    info:[],
  },
  //刚进入页面执行的操作
  onLoad(options) {
    this.setData({
      info:this.data.fixed_info
    })  
  },
  //搜索框回车事件
  search(event) {
    //始终保持查询的数据是完整的数组数据
    this.setData({
      info:this.data.fixed_info
    })
    let query = event.detail.value; // 要查询的关键词
    let array = this.data.info;//设置查询的数组
    let result = array.filter(item => {
      return item.name.includes(query);
    });
    this.setData({
      info:result
    })
  },
})