save project

sb/sb.py

+i = 3
+username = "python"
+userpassword = "123456"
+while True:
+    if i > 0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        i-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name != username:
+            print("用户名不存在,请重新输入!")
+            continue
+    
+        if password != userpassword:
+        print("密码输入有误,请重新输入!")
+    else :
+        print("ssxsdfthyuj")
+print("欢迎来到贝尔编程!")
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