{
  "component": true, // 自定义组件声明
  "usingComponents": {} // 可选项，用于引用别的组件
}

Component({
  properties: {
    modalHidden: {
      type: Boolean,
      value: true
    }, //这里定义了modalHidden属性，属性值可以在组件使用时指定.写法为modal-hidden  
    modalMsg: {
      type: String,
      value: ‘ ‘,
    }
  },
  data: {
    // 这里是一些组件内部数据  
    text: "text",
  },
  methods: {
    // 这里放置自定义方法  
    modal_click_Hidden: function () {
      this.setData({
        modalHidden: true,
      })
    },
    // 确定  
    Sure: function () {
      console.log(this.data.text)
    }
  }
})

<view hidden=‘{{modalHidden}}‘>  
  <view class=‘mask_layer‘ bindtap=‘modal_click_Hidden‘ />  
  <view class=‘modal_box‘>  
    <view class="title">提示</view>  
    <view class=‘content‘>  
      <text class=‘modalMsg‘>{{modalMsg}}</text>  
    </view>  
    <view class=‘btn‘>  
      <view bindtap=‘modal_click_Hidden‘ class=‘cancel‘>取消</view>  
      <view bindtap=‘Sure‘ class=‘Sure‘>确定</view>  
    </view>  
  </view>  
</view>

.mask_layer {  
  width: 100%;  
  height: 100%;  
  position: fixed;  
  z-index: 1000;  
  background: #000;  
  opacity: 0.5;  
  overflow: hidden;  
}  
.modal_box {  
  width: 76%;  
  overflow: hidden;  
  position: fixed;  
  top: 50%;  
  left: 0;  
  z-index: 1001;  
  background: #fafafa;  
  margin: -150px 12% 0 12%;  
  border-radius: 3px;  
}  
  
.title {  
  padding: 15px;  
  text-align: center;  
  background-color: gazure;  
}  
  
.content {  
  overflow-y: scroll; /*超出父盒子高度可滚动*/  
}  
  
.btn {  
  width: 100%;  
  margin-top: 65rpx;  
  display: flex;  
  flex-direction: row;  
  align-items: center;  
  justify-content: space-between;  
  box-sizing: border-box;  
  background-color: white;  
}  
  
.cancel {  
  width: 100%;  
  padding: 10px;  
  text-align: center;  
  color: red;  
}  
  
.Sure {  
  width: 100%;  
  padding: 10px;  
  background-color: gainsboro;  
  text-align: center;  
}  
  
.modalMsg {  
  text-align: center;  
  margin-top: 45rpx;  
  display: block;  
}

{
  "usingComponents": {
    "modal": "../../component/modal/modal"
  }
}