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第二章，在子控件按钮回调时，直接传入变化值1或-1，逻辑简单很多？ #96

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XiaoYaoDaddy opened this issue May 24, 2018 · 0 comments

XiaoYaoDaddy commented May 24, 2018 •

edited

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  onClickIncrementButton() {
    this.updateCount(1);
  }

  onClickDecrementButton() {
    this.updateCount(-1);
  }

  updateCount(changeValue) {
    this.setState({count: this.state.count + changeValue})
    this.props.onUpdate(changeValue)
  }

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