React通过父组件传递类名给子组件的实现方法

 import React from 'react'
import './style.css'
class PageTitle extends React.Component {
  constructor(props, context) {
    super(props, context);
    this.state = {
      timeType:0
    }
  }
  handleClick(timeType){
    this.setState({
      timeType:timeType
    });
    this.props.handle(timeType+1);
  }
  render() {
    const {title,dataList} = this.props;
    return (
     <h3 className={this.props.clasName+" cp_title"}>{title}
       <div className="floatR">
         {dataList.map((item,index) => {
           return <span key={index} onClick={this.handleClick.bind(this,index)} className={this.state.timeType === index "canvasNav canvasNavActive": "canvasNav"}>{item}</span>
         })}
       </div>
     </h3>
    )
  }
}
export default PageTitle;