save project

diy.py

+i=3
+username = "1"
+userpassword = "1"
+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("成功")
+            break
+        if name !=username:
+            print("账号错误")
+            continue            
+        if password != userpassword:
+            print("密码错误")
+    else:
+        print("的")
+        exec()
+print("欢迎")
\ No newline at end of file