save project

diy2.py

+i=3
 username = "121213"
 username = "121213"
 userpassword = "123456"
 userpassword = "123456"
 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 a!=username:
-        print("账号错了")
-        continue
-    if b!=userpassword :
-        print("密码错了")
+    if i>0:
+        a = input("请输入用户名:")
+        b = input("请输入密码:")
+        i -=1
+        if a == username and b == userpassword:
+            print("登录成功!")
+            break
+        if a!=username:
+            print("账号错了")
+            continue
+        if b!=userpassword :
+            print("密码错了")
+    else:
+        print("滚傻逼")
+        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