save project

diy2.py

+i=3
+username = "python"
+userpassword = "123456"
+while True:
+    if i>0:
+        name=input("输入用户名:")
+        password=input("输入密码")
+        i=i-1
+        if name==username and password==userpassword:
+            print("登陆成功")
+            break
+        if name!=username:
+            print("账号错误")
+            print("还剩余"+str(i)+"次数")
+            continue
+        if name!=username:
+            print("密码错误")
+            print("还剩余"+str(i)+"次数")
+            continue    
+    else:
+       print("次数已用完")
+       exit()
+print("欢迎来到贝尔编程!")
\ No newline at end of file