save project

diy2.py

+i=3
 username = "SB"
 userpassword = "我是SB"
 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
-    elif name!=username:
-        print("用户名是“SB”")
-    else password!=userpassword:
-        print("密码是“我是SB”")
+    if i>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i=i-1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        elif name!=username:
+            print("用户名是“SB”")
+        else:
+            print("密码是“我是SB”")
+    else:
+        print("你的SB号已锁")
+        exit()
 print("欢迎来到贝尔编程!")
\ No newline at end of file