YuAnQingi

摘要： 用户登录注册案例 1.def register(): username = input("请输入用户名：") password = input("请输入密码：") with open("users.txt", "a") as f: f.write(f"{username} {password} ") 阅读全文

摘要： 1. 打印课堂上图案 layer=int(input("需要打印的层数：")) for i in range(1,layer+1): for j in range(i): print("*",end="") print() 直角三角形右 layers = int(input("请输入要打印的层数：" 阅读全文