react获取不到要添加的数据

Question

react获取不到要添加的数据

添加成功 打印出来是空值

哪里漏写了 暂时没看出来 望指点 其他几个页面也有同样的问题 获取不到值

Answer 1

供参考

import React from "react";
import ReactDOM from "react-dom";
import "antd/dist/antd.css";
import "./index.css";
import { Input, Button } from "antd";

class App extends React.Component {
  state = {
    val: ""
  };
  onChange = (e) => {
    console.log(333, e);
    this.setState({ val: e.target.value });
  };
  save = (e) => {
    console.log("e", e);
  };
  render() {
    return (
      <div>
        <Input
          placeholder="Basic usage"
          value={this.val}
          onChange={this.onChange}
        />
        <Button onClick={() => this.save()}>点击</Button>
      </div>
    );
  }
}

ReactDOM.render(<App />, document.getElementById("container"));