save project

diy2.py

@@ -5,15 +5,20 @@ while True:
         if i>0:
         if i>0:
             name = input("请输入用户名:")
             name = input("请输入用户名:")
             password = input("请输入密码:")
             password = input("请输入密码:")
-    
+        if i<0 or i==0:
+            print("登陆失败")
+            break
         if name == username and password == userpassword:
         if name == username and password == userpassword:
             print("登录成功!")
             print("登录成功!")
             break
             break
         if username!=name:
         if username!=name:
             print("用户名错误")
             print("用户名错误")
+            i=i-1
+            print("您还有"+str(i)+"次机会")
             continue
             continue
         if userpassword!=password:
         if userpassword!=password:
-            exit()
             print("密码错误")
             print("密码错误")
-        
+            i=i-1
+            print("您还有"+str(i)+"次机会")
+            continue
         
         
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