save project

diy2.py

 username = "python"
 userpassword = "123456"
+i=3
 while True:
-    name = input("请输入用户名:")
-    password = input("请输入密码:")
-    if name == username and password == userpassword:
-        print("登录成功!")
-        break
-    if name != username:
-       input("请重输入用户名:")
-       continue
-    if password != userpassword:
-        input("请重输入密码:")
\ No newline at end of file
+    if i>3:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        if name == username and password == userpassword:
+            print("登录成功!")
+            break
+            i-=1
+        if name != username:
+            input("请重输入用户名:")
+            i-=1
+        continue
+        if password != userpassword:
+            input("请重输入密码:")
+            i=i-1
+        else    
\ No newline at end of file