save project

diy2.py

+
+i=3
 username = "Allen"
 userpassword = "54188"
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
-    if  name!=username:
-        print("您的用户名错误")
-        continue
-    if  password!=userpassword:
-        print("您的密码错误")
-    print("用户名和密码错误!请重新输入")
+    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("您的用户名错误")
+            continue
+        if  password!=userpassword:
+            print("您的密码错误")
+        print("用户名和密码错误!请重新输入")
+else:
+    print("您的帐号被锁定,请三小时以后再登陆")
+    exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file