save project

diy2.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=i-1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if name!= username:
+            print("1")
+        elif password!=userpassword:
+            print("2")
+    else
+        print("3")
+        exit()
+print("欢迎来到贝尔编程!")   
\ No newline at end of file