save project

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+    name = input("请输入用户名:")
+    password = input("请输入密码:")
+    i-=1
+    if name == username and password == userpassword:
+        print("登录成功!")
+        break
+    if name !=username:
+        print("用户名不存在,请重新输入")
+        print("温馨提示:您还有"+str(i)+"次登录机会")
+        continue
+    if password != userpassword:
+        print("密码输入有误,请重新输入")
+        print("温馨提示:您还有"+str(i)+"次登录机会")
+    exit()
+    print("你的账号已锁顶,请你到司来找我)
+print("欢迎来到贝尔编程!")
\ No newline at end of file