[Go语言]我的第七个Go语言程序

Exercise: Readers

Implement a Reader type that emits an infinite stream of the ASCII character'A'.

package main

import "golang.org/x/tour/reader"

type MyReader struct{}

func (r MyReader) Read(b []byte) (int, error) {
    for i := range b {
	    b[i] = 'A'
	}
	return len(b), nil
}

func main() {
	reader.Validate(MyReader{})
}