save project

a.py

+i=1
+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("用户名错误！请重新输入")
+            print("温馨提示：您还有"+str(i)+"次登录机会")
+            continue
+        if password !=userpassword:
+            print("密码输入错误！请重新输入")
+            print("温馨提示：您还有"+str(i)+"次登录机会")
+    else:
+        print("你的账户已被锁定")
+        exit()
+print("欢迎来到贝尔编程")
+