新建一个HTML网页，网页上有一个姓名输入框、性别输入框和一个提交按钮，要求用户提交时检查姓名不能为空且性别必须是“男”或“女”，如果不符合标准则提示错误；-Create a new HTML page, the page input box has a name, gender input box and a submit button, requiring users to submit the names can not be blank check, and gender must be " male"　or " female" , if the tips do not meet the standard error