save project

diy1.py

+i=3
 username = "wangtengyi"   
 username = "wangtengyi"   
 userpassword = "3409231"    
 userpassword = "3409231"    
 name=input("请输入姓名:")
 name=input("请输入姓名:")
 password=input("请输入密码:")
 password=input("请输入密码:")
 while True:
 while True:
-    if username == name and userpassword == password:
-        print("登录成功!")
-        break
-    if username != name:
-        print("用户名不存在")
-        continue
-    if userpassword != password:
-        print("密码不正确")
+    if i>0    
+        if username == name and userpassword == password:
+            print("登录成功!")
+            break
+        if username != name:
+            print("用户名不存在")
+            continue
+        if userpassword != password:
+            print("密码不正确")
+    else:
+        print("次数已用完!")
 print("欢迎来到贝尔编程")
 print("欢迎来到贝尔编程")
\ No newline at end of file