![](https://img.laitimes.com/img/_0nNw4CM6IyYiwiM6ICdiwiI9s2RkBnVHFmb1clWvB3MaVnRtp1XlBXe0xCMy81dvRWYoNHLwEzX5xCMx8FesU2cfdGLwMzX0xiRGZkRGZ0Xy9GbvNGLpZTY1EmMZVDUSFTU4VFRR9Fd4VGdsYTMfVmepNHLrJXYtJXZ0F2dvwVZnFWbp1zczV2YvJHctM3cv1Ce-cmbw5yNyYjMyQGNmFmYkJjYzITMzYzXxQTOxEDMzAzLclDMyIDMy8CXn9Gbi9CXzV2Zh1WavwVbvNmLvR3YxUjLyM3Lc9CX6MHc0RHaiojIsJye.png)
import React from "react";
interface IHelloProps{
message?:string;
}
const Hello:React.FunctionComponent<IHelloProps>=(props)=>{
return <h2>{props.message}</h2>
}
Hello.defaultProps={
message:"Hello Geyao"
}
export default Hello
import React from "react";
interface IHelloProps{
message?:string;
}
const Hello:React.FunctionComponent<IHelloProps>=(props)=>{
return <h2>{props.message}</h2>
}
Hello.defaultProps={
message:"Hello Geyao"
}
export default Hello