save project

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name=input("请输入账号:")
+        password=input("请输入密码:")
+        i-=1
+        if name==username and password==userpassword:
+            print("登陆成功")
+            break
+        elif name != username:
+            print("用户名不存在")
+            continue
+        #  password != userpassword:
+        else:
+            #password != userpassword:
+            print("密码错误,请从新输入")
+    else:
+        print("FBI,来你家喝茶")
+        exit()
+        #print("密码输入错误")
+print("欢迎来到贝尔编程！")
\ No newline at end of file