save project

diy2.py

+i=3
 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 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:
     if name == username and password == userpassword:
         print("登录成功!")
         print("登录成功!")
-    print("用户名和密码错误!请重新输入")
+        break
+    if name != username:
+       print("")
+       print("你有"+str(i)+"次")
+       continue
+    if password != userpassword:
+        print("")
+        print("")
+    else:
+        print("")
+        exit()    
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
\ No newline at end of file