save project

diy2.py

+a=2
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 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("请输入用户名")
-    if password != userpassword:
-        print("请重新输入密码")
+    if a >0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        a-=1
+        if name ==name  username and password == userpassword:
+            print("登录成功!")
+            break
+        elif name !=username:
+            print("请输入用户名")
+        eles:
+            print("请重新输入密码")
+    else:
+        print("已被锁定")
+        exit        
 print("欢迎来到淘宝!")
 print("欢迎来到淘宝!")
\ No newline at end of file