save project

diy2.py

-username = "python"
-userpassword = "123456"
 while True:
 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 name != userpassword and name == username:
-        print("密码错误")
+    if a>0:
+        name = input("请输入用户名:")
+        password = input("请输入密码:")
+        if name == username:
+            print("登录成功!")
+            break
+        if name != username:
+            print("账号错误")
+            a-=1
+            print("你还有",int(a),"机会")
+        if name != userpassword and name == username:
+            print("密码错误")
+            a-=1
+            print("你还有",int(a),"机会")
+    else: 
+        print("你的次数已用尽,请到我司解锁")
+        exit()
 print("欢迎来到贝尔编程!")
 print("欢迎来到贝尔编程!")
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