php，python，go，java简单的打印字符串

<?php echo "你好，周先生";?>

print("你好，周先生")

package main
import "fmt"
func main() {
    fmt.Println("你好，周先生")
}

public class HelloWorld {
    public static void main(String[] args) {
        System.out.println("你好，周先生");
    }
}