vue完成用户中添加、删除和查找的工作

实现一个简单用户添加查找删除的vue小案例

效果

代码

html部分

    <div class="add">
      用户编号:
      <input type="text" v-model="userId" ref="inputId"> 用户姓名:
      <input type="text" v-model="userName" @keydown.enter="addUserData">
      <button @click="addUserData">添加</button>
      <p v-if="show">编号或姓名不能为空</p>
    </div>
    <div class="add">
      用户姓名:
      <input type="text" placeholder="请输入搜索条件" v-model="searchValue" >
    </div>
    <div>
      <table class="tb">
        <tr>
          <th>编号</th>
          <th>用户名</th>
          <th>添加时间</th>
          <th>操作</th>
        </tr>
        <tr v-for="(item,index) in newList" :key="item.id" >
          <td>{{item.id}}</td>
          <td>{{item.userName}}</td>
          <td>{{item.addDateTime|showDate}}</td>
          <td>
            <a href="#" @click='deleteUserData(index)'>删除</a>
          </td>
        </tr>
        <tr v-if="userList.length===0">
          <td colspan="4">没有用户数据</td>
        </tr>
      </table>
    </div>
  </div>

js部分

    // 时间过滤器
    Vue.filter('showDate', function (time, sep) {
      // 年-月-日
      var year = time.getFullYear();
      var m = time.getMonth() + 1;
      var d = time.getDate();
      return year + "-" + m + "-" + d
    })
    var vm = new Vue({
      el: "#app",
      data: {
        trShow: true,
        show: false,
        userId: null,
        userName: '',
        searchValue: '', //表示搜索的数据
        userList: [{
          id: 1,
          userName: '张三',
          addDateTime: new Date()
        }, {
          id: 2,
          userName: '李四',
          addDateTime: new Date()
        }, {
          id: 3,
          userName: '王五',
          addDateTime: new Date()
        }]
      },
      methods: {
        fn() {
          console.log(5);
          this.trShow = false;
        },
        // 删除操作
        deleteUserData(i) {
          this.userList.splice(i, 1)
        },
        // 添加操作
        addUserData() {
          if (this.userId == null || this.userName == null) {
            this.show = true;
            return
          }
          this.show = false;
          this.userList.push({
            id: this.userId,
            userName: this.userName,
            addDateTime: new Date()
          })
          this.userId = null;
          this.userName = '';
        }
      },
      mounted() {
        this.$refs.inputId.focus();
      },
      computed: {
        // 完成用户信息的搜索
        newList() {
          var arr = this.userList.filter(value => value.userName.indexOf(this.searchValue) !== -1)
          return arr
        }
      }
    })

css部分

    #app {
      width: 600px;
      margin: 10px auto;
    }

    .tb {
      /* 合并边框 */
      border-collapse: collapse;
      width: 100%;
    }

    .tb th {
      background-color: darkturquoise;
      color: white;
    }

    .tb td,
    .tb th {
      padding: 5px;
      border: 1px solid #999999;
      text-align: center;
    }

    .add {
      padding: 5px;
      border: 1px solid #999999;
      margin-bottom: 10px;
    }

    .add p {
      margin: 0;
      color: red;
    }