我不知道为什么点击事件不是 firing.can 谁能帮帮我

Question

enter image description here 谁能解决这个问题enter image description here

Answer 1

我检查了你的代码并修复了问题：

import React, { Component } from 'react';

export default class Classcompo extends Component {
  constructor(props) {
    super(props);
    this.state = {
      message: 'welcome visitors',
    };
  }
  changeMessage() {
    this.setState({
      message: 'ok',
    });
  }
  render() {
    return (
      <div>
        <h1>{this.state.message}</h1>
        <button onClick={() => this.changeMessage()}>CLICK</button>
      </div>
    );
  }
}

我不知道为什么点击事件不是 firing.can 谁能帮帮我

i dont know why click event is not firing.can anyone help me please

reactjs

react-dom