save project

diy2.py

+i=3
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
 while True:
 while True:
+    if i>0:
         name = input("请输入用户名:")
         name = input("请输入用户名:")
+
+        if name!=username:
+            print("账号错误！") 
+            print("你还有"+str(i)+"次机会")
         password = input("请输入密码:")
         password = input("请输入密码:")
+        i-=1
+        if password != userpassword:
+                print("密码错误！")
+                print("你还有"+str(i)+"次机会")
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
-    if name!=username and password==userpassword:
-        print("用户名错误!请重新输入")
-    if name==username and password!=userpassword:
-        print("密码错误!请重新输入")
-    if name!=username and password!=userpassword:
-        print("用户名和密码错误!请重新输入")
+    else:
+        print("账号锁定！")
+        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