save project

diy2.py

+i=0
 username = "python"
 username = "python"
 userpassword = "123456"
 userpassword = "123456"
-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:
-        print("账号错误")
-    if password !=userpassword:
-        print("密码错误")
-    #else:  
-         print("用户名和密码错误!请重新输入")
-print("欢迎来到贝尔编程!")
+i+=1
+if i>0:
+    print('次数已经用完')
+else:
+    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:
+            print("账号错误")
\ No newline at end of file
+        if password !=userpassword:
+
+            print("密码错误")
+        else:  
+            print("用户名和密码错误!请重新输入")
+    print("欢迎来到贝尔编程!")
\ No newline at end of file