save project

sb.py

+i=3
+username="LY"
+userpassword="123456"
+while True:
+    if i>0:
+        name=input("用户名")
+        password=input("密码")
+        i-=1
+        if name==username and password==userpassword:
+            print("登录成功")
+            breek
+        if name!=username:
+            print("该网页无法正常运行 请重新输入")
+            print("你还有"+str(i)+"次机会")
+            continue
+            print("该网页无法正常运行 请重新输入")
+    else:
+        print("再见了朋友")
+        exit()
+print("欢迎来到贝尔编程")
\ No newline at end of file