我用我的手机录制了一段视频,格式是".mp4“。现在,如果我在HTML5视频标签中加载视频,我得到一个错误HTTP "Content-Type" of "video/3gpp" is not supported.为什么火狐认为这个文件是3gpp,尽管它是一个mp4文件?如果在将文件加载到浏览器时记录文件属性,我会看到以下内容
{ name: "test.mp4", lastModified: 1434536249000, lastModifiedDate: Date 2015-06-17T10:17:29.000Z, size: 4115
有像sql那样的visual studio代码的字符吗?
sql:
... where like "%test%";// anything with "test" text inside
... where like "[test]%";// anything with starts with "test"
... where like "test_";// anything with starts with "test" and has only 1 more character
有人知道像上面所
我试图使用shell从url字符串中提取字符(在两种方法之间使用)。我被困在识别"?“人物..。
set sample to "https://someaddress.com/path/subpath/12345?userId=523"
set extract to do shell script "awk -F 'subpath/|userId' '{print $2}'<<<" & quoted form of sample
...this将工作,但显然返回"12345?“。我又如何将