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使用非受控组件完成表单

master
blobt 4 years ago
parent
a9d7608f53
commit
56bf1e97a7
3 changed files with 35 additions and 3 deletions
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  1. 2
      .eslintcache
  2. 4
      src/App.js
  3. 32
      src/components/CommentBox2.js

2
.eslintcache
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@ -1 +1 @@
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4
src/App.js
View File

@ -1,10 +1,10 @@
import './App.css';
import CommentBox from './components/CommentBox';
import CommentBox2 from './components/CommentBox2';
function App() {
return (
<div className="App">
<CommentBox />
<CommentBox2 />
</div>
);
}

32
src/components/CommentBox2.js
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@ -0,0 +1,32 @@
import React from 'react';
class CommentBox2 extends React.Component {
constructor(props) {
super(props);
this.submit = this.submit.bind(this);
}
submit(event) {
console.log(this.textInput.value);
event.preventDefault();
}
render() {
return (
<div>
<form className="p-5" onSubmit={this.submit}>
<div className="form-group">
<label>留言内容</label>
<input
type="text"
className="form-control"
placeholder="请输入内容"
ref={(textInput) => { this.textInput = textInput }}
/>
</div>
<button type="submit" className="btn btn-primary">留言</button>
</form>
</div>
)
}
}
export default CommentBox2;
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