https://www.ffmpeg.org/#aac_encoder_stable February 15th, 2016, FFmpeg 3.0 "Einstein" FFmpeg 3.0 "Einstein", a new major release, is now available! Some of the highlights: The native FFmpeg AAC encoder has seen extensive improvements a
multiple. select列表多选 触发事件后调用有参数的函数要先创建一个函数,然后在函数内调用执行函数 Array.from(伪数组):伪数组变为真数组 indexOf():查询字符的索引 a) indexOf(‘abcde’) i. indexOf(‘a’)的索引是0 ii. indexOf(‘abc’)的索引是0,按照第一个字符的索引 iii. indexOf(‘ac’)的索引是-1,查找不到ac连续的字符 iv. indexOf(‘f’)的