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@@ -1,7 +1,7 @@
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<!--
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* @Author: chenxuan
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* @Date: 2022-01-08 20:04:29
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* @LastEditTime: 2022-01-08 20:05:31
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* @LastEditTime: 2022-05-02 09:35:50
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* @LastEditors: chenxuan
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-->
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<!DOCTYPE html>
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@@ -23,11 +23,11 @@
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this.state={
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ishot:true
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}
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// 解决this指向问题
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this.demo=this.demo.bind(this)
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}
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render(){
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const {ishot}=this.state;
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// 解决this指向问题
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return <h1 onClick={this.demo}>今天天气很{ishot ? '炎热' : '凉爽'}</h1>
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}
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demo(){
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+1
-1
@@ -1,7 +1,7 @@
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<!--
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* @Author: chenxuan
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* @Date: 2022-01-01 14:00:24
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* @LastEditTime: 2022-01-01 22:27:36
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* @LastEditTime: 2022-05-02 10:10:46
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* @LastEditors: chenxuan
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-->
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<!DOCTYPE html>
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+3
-2
@@ -1,7 +1,7 @@
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<!--
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* @Author: chenxuan
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* @Date: 2022-01-02 22:09:19
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* @LastEditTime: 2022-03-20 14:35:58
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* @LastEditTime: 2022-05-02 12:18:45
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* @LastEditors: chenxuan
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-->
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<!DOCTYPE html>
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@@ -23,11 +23,12 @@
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// 这种写法,更新时不会调用
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haha=(c)=>{
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this.hehe=c;
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console.log("xx")
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}
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change=()=>{
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const {ishot}=this.state;
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this.setState({ishot:!ishot});
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console.log(this.hehe.value)
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}
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render(){
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const {ishot}=this.state;
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