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("用户名错误！")
+            print("您还有"+str(i)+"机会")
+            continue
+        if password != userpassword:
+            print("账号错误！")
+            print("您还有"+str(i)+"机会")
+    else:
+         print("次数用完，请来到我司登录！")
+         exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file