save project

diy2.py

 username = "hhh"
 username = "hhh"
 userpassword = "888"
 userpassword = "888"
+c = 3
 while True:
 while True:
-    a = input("请输入用户名:")
-    b = input("请输入密码:")
-    if a == username and b == userpassword:
-        print("登录成功!")
-        break
-    if username != a:
-        print("用户名错误!请重新输入")
-        continue
-    if userpassword != b:
-        print("密码错误!请重新输入")
+    if c > 0:
+        a = input("请输入用户名:")
+        b = input("请输入密码:")
+        c -=1
+        if a == username and b == userpassword:
+            print("登录成功!")
+            break
+        if username != a:
+            print("用户名错误!请重新输入")
+            continue
+        if userpassword != b:
+            print("密码错误!请重新输入")
+    else:
+        print("您的账号已锁定,哈哈嗨")
+        exit()
 print("欢迎")
 print("欢迎")
\ No newline at end of file