React 组件嵌套 父子关系

代码实例;

<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <title>父子关系</title>
</head>
<body>
    <script src="./react-0.13.2/react-0.13.2/build/react.js"></script>
    <script src="./react-0.13.2/react-0.13.2/build/JSXTransformer.js"></script>
    <script type="text/jsx">
        var GenderSelect = React.createClass({
            render: function() {
                return <select onChange={this.props.handleSelect}>
                <option value="0">男</option>
                <option value="1">女</option>
                </select>
            }
        })
        var SignupForm = React.createClass({
            getInitialState: function() {
                return {
                    name: '',
                    password: '',
                    gender: '',
                }
            },
            handleChange: function(name, event) {
                var newState = {}
                newState[name] = event.target.value
                this.setState(newState)
            },
            handleSelect: function(event) {
                this.setState({gender: event.target.value})
            },
            render: function() {
                console.log(this.state)
                return <form>
                <input type="text" placeholder="请输入用户名" onChange={this.handleChange.bind(this, 'name')} />
                <input type="password" placeholder="请输入密码" onChange={this.handleChange.bind(this, 'password')} />
                <GenderSelect handleSelect={this.handleSelect}></GenderSelect>
                </form>
            }
        })
        React.render(<SignupForm></SignupForm>, document.body);
    </script>
</body>
</html>

　　效果：

 

 

 

 

 

posted @ 2017-09-29 17:14  1点  阅读(654)  评论(0)  编辑  收藏  举报