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-=1
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+        if username != name:
+            print("名字输入错误")
+            continue
+        if userpassword != passwor:
+            print("密码输入错误")    
+    else:
+        print("输入密码次数已用完")
+        exit()    
+input("登录成功")
\ No newline at end of file