7 for语句

sites = ["baidu", "google", "noob", "taobao"]
for site in sites:
    if site == "noob":
        print("菜鸟教程！")
        break   #跳出循环体
    print("循环数据：", site)
else:
    print("没有循环数据")

print("完成循环")

结果：