Android之邮箱注册正则表达式 http://www.cnblogs.com/-cyb/archive/2011/07/01/Android_EmailFormat.htmlprotected void Check() {if (USERNAME.equals("") || PASSWORD.equals("")) {Toast.makeText(context, "账号或密码不能为空", Toa Android 2023-10-16 36 点赞 0 评论 54 浏览