小程序iView Weapp实现一个倒计时

<view class="view-wrap">
    <text class="type-title">倒计时：</text>
    <i-count-down
            target="{{targetTime}}"
            clear-timer="{{clearTimer}}"
    ></i-count-down>
</view>

Page({
  data: {
    clearTimer: false
  },
  onLoad() {
    this.setData({
      targetTime: new Date().getTime() + 6430000,
    });
  },
  onUnload() {
    this.setData({
      clearTimer: true
    });
  },
  myLinsterner(e) {
    this.setData({
    });
  }
});

{
"usingComponents": {
  "i-count-down": "../../dist/count-down/index",
  "i-card": "../../dist/card/index"
}
}