Golang程序，使用二进制运算符将大写字母转换为小写字母。
示例
package main
import "fmt"
func main(){
fmt.Printf("使用OR运算符从大写字母打印小写字母： ")
for ch:='A'; ch<='Z'; ch++ {
fmt.Printf(string(ch | ' '))
}
fmt.Println()
fmt.Printf("Printing Uppercase characters from Lowercase characters using
AND operator: ")
for ch:='a'; ch<='z'; ch++ {
fmt.Printf(string(ch & '_'))
}
}输出结果使用OR运算符从大写字母打印小写字母： abcdefghijklmnopqrstuvwxyz Printing Uppercase characters from Lowercase characters using AND operator: ABCDEFGHIJKLMNOPQRSTUVWXYZ