import React, { Component } from "react";

class RadionButtons extends Component {
  constructor(props) {
    super(props);

    this.state = {
      // gender : "" , // use this one if you don't wanna any default value for gender
      gender: "male" // we are using this state to store the value of the radio button and also use to display the active radio button
    };

    this.handleRadioChange = this.handleRadioChange.bind(this);  // we require access to the state of component so we have to bind our function 
  }

  // this function is called whenever you change the radion button 
  handleRadioChange(event) {
      // set the new value of checked radion button to state using setState function which is async funtion
    this.setState({
      gender: event.target.value
    });
  }


  render() {
    return (
      <div>
        <div check>
          <input
            type="radio"
            value="male" // this is te value which will be picked up after radio button change
            checked={this.state.gender === "male"} // when this is true it show the male radio button in checked 
            onChange={this.handleRadioChange} // whenever it changes from checked to uncheck or via-versa it goes to the handleRadioChange function
          />
          <span
           style={{ marginLeft: "5px" }} // inline style in reactjs 
          >Male</span>
        </div>
        <div check>
          <input
            type="radio"
            value="female"
            checked={this.state.gender === "female"}
            onChange={this.handleRadioChange}
          />
          <span style={{ marginLeft: "5px" }}>Female</span>
        </div>
      </div>
    );
  }
}
export default RadionButtons;

我们是这样做的:

export default function RadioButton({ onChange, option }) {
    const handleChange = event => {
        onChange(event.target.value)
    }

    return (
        <>
            <div className="custom-control custom-radio">
                <input
                    type="radio"
                    id={ option.option }
                    name="customRadio"
                    className="custom-control-input"
                    onChange={ handleChange }
                    value = { option.id }
                    />
                    <label
                        className="custom-control-label"
                        htmlFor={ option.option }
                        >
                        { option.option }
                    </label>
            </div>
        </>
    )
}

根据React Docs的说法:

处理多输入。 当需要处理多个受控输入元素时，可以向每个元素添加一个name属性，并让处理程序函数根据event.target.name的值选择要做什么。

例如:

class App extends React.Component {
  constructor(props) {
    super(props);
    this.state = {};
  }

  handleChange = e => {
    const { name, value } = e.target;

    this.setState({
      [name]: value
    });
  };

  render() {
    return (
      <div className="radio-buttons">
        Windows
        <input
          id="windows"
          value="windows"
          name="platform"
          type="radio"
          onChange={this.handleChange}
        />
        Mac
        <input
          id="mac"
          value="mac"
          name="platform"
          type="radio"
          onChange={this.handleChange}
        />
        Linux
        <input
          id="linux"
          value="linux"
          name="platform"
          type="radio"
          onChange={this.handleChange}
        />
      </div>
    );
  }
}

链接到示例:https://codesandbox.io/s/6l6v9p0qkr

首先，没有一个单选按钮被选中。State是一个空对象，但每当选中单选按钮时，此。State获取一个新属性，其中包含输入的名称及其值。然后很容易检查用户是否选择了任何单选按钮，如:

const isSelected = this.state.platform ? true : false;

编辑:

在React的16.7-alpha版本中，有一个叫做钩子的提议，它会让你更容易地做这些事情:

在下面的例子中，一个功能组件中有两组单选按钮。尽管如此，他们还是有可控的输入:

function App() {
  const [platformValue, plaftormInputProps] = useRadioButtons("platform");
  const [genderValue, genderInputProps] = useRadioButtons("gender");
  return (
    <div>
      <form>
        <fieldset>
          Windows
          <input
            value="windows"
            checked={platformValue === "windows"}
            {...plaftormInputProps}
          />
          Mac
          <input
            value="mac"
            checked={platformValue === "mac"}
            {...plaftormInputProps}
          />
          Linux
          <input
            value="linux"
            checked={platformValue === "linux"}
            {...plaftormInputProps}
          />
        </fieldset>
        <fieldset>
          Male
          <input
            value="male"
            checked={genderValue === "male"}
            {...genderInputProps}
          />
          Female
          <input
            value="female"
            checked={genderValue === "female"}
            {...genderInputProps}
          />
        </fieldset>
      </form>
    </div>
  );
}

function useRadioButtons(name) {
  const [value, setState] = useState(null);

  const handleChange = e => {
    setState(e.target.value);
  };

  const inputProps = {
    name,
    type: "radio",
    onChange: handleChange
  };

  return [value, inputProps];
}

工作示例:https://codesandbox.io/s/6l6v9p0qkr

这里只是一个想法:当涉及到React中的无线电输入时，我通常以一种不同的方式渲染它们，这在前面的回答中提到过。

如果这可以帮助任何需要渲染大量单选按钮的人:

import React from "react" import ReactDOM from "react-dom" // This Component should obviously be a class if you want it to work ;) const RadioInputs = (props) => { /* [[Label, associated value], ...] */ const inputs = [["Male", "M"], ["Female", "F"], ["Other", "O"]] return ( <div> { inputs.map(([text, value], i) => ( <div key={ i }> <input type="radio" checked={ this.state.gender === value } onChange={ /* You'll need an event function here */ } value={ value } /> { text } </div> )) } </div> ) } ReactDOM.render( <RadioInputs />, document.getElementById("root") ) <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script> <div id="root"></div>

单击单选按钮应该触发一个事件，其中之一:

如果只希望选择知识是本地的，则调用setState 调用一个从上面传入的回调函数self.props.selectionChanged(…)

在第一种情况下，改变状态将触发重新渲染，你可以这样做 <td>所选站点名称{this.state. name。chosenSiteName} < / td >

在第二种情况下，回调的源将更新内容，以确保您的SearchResult实例将有chosenSiteName和chosenAddress设置在它的props中。

根据陈康的回答，我有一个更干练的方法给感兴趣的人:

class RadioExample extends React.Component {
  constructor(props) {
    super(props);

    this.state = {
      selectedRadio: 'public'
    };
  }

  handleRadioChange = (event) => {
    this.setState({
      selectedRadio: event.currentTarget.value
    })
  };

  render() {
    return (
      <div className="radio-row">
        <div className="input-row">
          <input
            type="radio"
            name="public"
            value="public"
            checked={this.state.selectedRadio === 'public'}
            onChange={this.handleRadioChange}
          />
          <label htmlFor="public">Public</label>
        </div>
        <div className="input-row">
          <input
            type="radio"
            name="private"
            value="private"
            checked={this.state.selectedRadio === 'private'}
            onChange={this.handleRadioChange}
          />
          <label htmlFor="private">Private</label>
        </div>
      </div>
    )
  }
}

除了这个会有一个默认的选中值。