- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
无法找出可能导致此死亡的原因。有小费吗?或者什么样的日志可能有助于排除故障?它只是说“杀死”。
这个 FFMPEG 安装在我的 AWS Linux (centos rhel fedora)
我非常有信心该文件没问题,因为 ffmpeg 在我的本地 macos 上运行正常(但 brew 安装的 ffmpeg 不同)。
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x927f20] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x927f20] profile High, level 5.1
[libx264 @ 0x927f20] 264 - core 148 r2795 aaa9aa8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'fail.mp4':= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
encoder : Lavf57.83.100
Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 3840x2160, q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
Metadata:
creation_time : 2022-04-27T17:14:43.000000Z
handler_name : Alias Data Handler
encoder : Lavc57.107.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
creation_time : 2022-04-27T17:14:45.000000Z
handler_name : Alias Data Handler
encoder : Lavc57.107.100 aac
Killed 37 fps= 18 q=0.0 size= 0kB time=00:00:01.00 bitrate= 0.0kbits/s speed=0.484x
这是我的 FFMPEG
ffmpeg version N-60236-gffb000fff8-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
libavutil 57. 18.100 / 57. 18.100
libavcodec 59. 20.100 / 59. 20.100
libavformat 59. 17.100 / 59. 17.100
libavdevice 59. 5.100 / 59. 5.100
libavfilter 8. 25.100 / 8. 25.100
libswscale 6. 5.100 / 6. 5.100
libswresample 4. 4.100 / 4. 4.100
libpostproc 56. 4.100 / 56. 4.100
Hyper fast Audio and Video encoder
我刚得到一个调试日志
Successfully opened the file.
Parsing a group of options: output url failed.mp4.
Successfully parsed a group of options.
Opening an output file: failed.mp4.
[file @ 0x6c3d340] Setting default whitelist 'file,crypto,data'
Successfully opened the file.
detected 2 logical cores
[h264 @ 0x6c407c0] nal_unit_type: 7(SPS), nal_ref_idc: 1
[h264 @ 0x6c407c0] nal_unit_type: 8(PPS), nal_ref_idc: 1
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 7(SPS), nal_ref_idc: 1
[h264 @ 0x6c407c0] nal_unit_type: 8(PPS), nal_ref_idc: 1
[h264 @ 0x6c407c0] nal_unit_type: 6(SEI), nal_ref_idc: 0
[h264 @ 0x6c407c0] nal_unit_type: 5(IDR), nal_ref_idc: 1
[h264 @ 0x6c407c0] Format yuv420p chosen by get_format().
[h264 @ 0x6c407c0] Reinit context to 3840x2160, pix_fmt: yuv420p
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] no picture
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
[graph 0 input from stream 0:0 @ 0x6fe9780] Setting 'video_size' to value '3840x2160'
[graph 0 input from stream 0:0 @ 0x6fe9780] Setting 'pix_fmt' to value '0'
[graph 0 input from stream 0:0 @ 0x6fe9780] Setting 'time_base' to value '1/30000'
[graph 0 input from stream 0:0 @ 0x6fe9780] Setting 'pixel_aspect' to value '0/1'
[graph 0 input from stream 0:0 @ 0x6fe9780] Setting 'frame_rate' to value '30/1'
[graph 0 input from stream 0:0 @ 0x6fe9780] w:3840 h:2160 pixfmt:yuv420p tb:1/30000 fr:30/1 sar:0/1
[format @ 0x77af200] Setting 'pix_fmts' to value 'yuv420p|yuvj420p|yuv422p|yuvj422p|yuv444p|yuvj444p|nv12|nv16|nv21|yuv420p10le|yuv422p10le|yuv444p10le|nv20le|gray|gray10le'
[AVFilterGraph @ 0x6fe8a00] query_formats: 4 queried, 3 merged, 0 already done, 0 delayed
[libx264 @ 0x70e7800] using mv_range_thread = 360
[libx264 @ 0x70e7800] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x70e7800] profile High, level 5.1, 4:2:0, 8-bit
[libx264 @ 0x70e7800] 264 - core 164 r3081 19856cc - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Clipping frame in rate conversion by 0.000008
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:0 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[graph_1_in_0_1 @ 0x6fc91c0] Setting 'time_base' to value '1/48000'
[graph_1_in_0_1 @ 0x6fc91c0] Setting 'sample_rate' to value '48000'
[graph_1_in_0_1 @ 0x6fc91c0] Setting 'sample_fmt' to value 'fltp'
[graph_1_in_0_1 @ 0x6fc91c0] Setting 'channel_layout' to value '0x3'
[graph_1_in_0_1 @ 0x6fc91c0] tb:1/48000 samplefmt:fltp samplerate:48000 chlayout:0x3
[format_out_0_1 @ 0x70e6a80] Setting 'sample_fmts' to value 'fltp'
[format_out_0_1 @ 0x70e6a80] Setting 'sample_rates' to value '96000|88200|64000|48000|44100|32000|24000|22050|16000|12000|11025|8000|7350'
[AVFilterGraph @ 0x70f2400] query_formats: 4 queried, 9 merged, 0 already done, 0 delayed
Output #0, mp4, to 'failed.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
encoder : Lavf59.17.100
Stream #0:0(eng), 0, 1/15360: Video: h264, 1 reference frame (avc1 / 0x31637661), yuv420p(tv, bt709, progressive, left), 3840x2160 (0x0), 0/1, q=2-31, 30 fps, 15360 tbn (default)
Metadata:
creation_time : 2022-04-27T17:14:43.000000Z
handler_name : ?Mainconcept Video Media Handler
vendor_id : [0][0][0][0]
encoder : Lavc59.20.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
Stream #0:1(eng), 0, 1/48000: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, delay 1024, 128 kb/s (default)
Metadata:
creation_time : 2022-04-27T17:14:45.000000Z
handler_name : #Mainconcept MP4 Sound Media Handler
vendor_id : [0][0][0][0]
encoder : Lavc59.20.100 aac
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:1 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
Last message repeated 14 times
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
Last message repeated 16 times
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
Last message repeated 15 times
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
Last message repeated 16 times
[h264 @ 0x6c44900] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x70354c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 1
cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
[h264 @ 0x6c407c0] nal_unit_type: 1(Coded slice of a non-IDR picture), nal_ref_idc: 0
Killed
最佳答案
只是想插话,因为在搜索此问题时,它似乎是 Google 上出现的相当高的问题之一。
对我来说,出乎意料的是,我只给运行 ffmpeg 的容器提供了总共 4 GiB 的 RAM。出于某种原因,即使只处理单个帧也会使 RAM 使用量达到 4,11 GiB(增加它之后)。 “Killed”可能来自 Linux OOM Killer。将其增加到 8 GiB 使其成功运行。
关于FFMPEG 被杀死 - 用于故障排除的信息不多,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/72052279/
我在为 MacOSX 构建的独立包中添加 DMG 背景的自定义图标时遇到问题。我在项目的根目录中添加了一个包。正在从中加载自定义图标,但没有加载 DMG 背景图标。我正在使用 Java fx 2.2.
Qt for Symbian 和 Qt for MeeGo 有什么区别?我知道 Qt 是一个交叉编译平台。这是否意味着如果我使用来自 Qt 的库,完全相同的库可以在所有支持 Qt 的设备(例如 Sym
我正在尝试使用 C# .NET 3.5/4.0 务实地运行 SQL Server 数据库的备份。我已经找到了如何完成此操作,但是我似乎找不到用于备份的命名空间库。 我正在寻找 Microsoft.Sq
我最近在疯狂学习 Java,但我通常是一名 .NET 开发人员。 (所以请原谅我的新手问题。) 在 .Net 中,我可以在不使用 IIS 的情况下开发 ASP.Net 页面,因为它有一个简化的 Web
这post仅当打印命令中有字符串时才有用。现在我有大量的源代码,其中包含一条声明,例如 print milk,butter 应该格式化为 print(milk,butter) 用\n 捕获行尾并不成功
所以我的问题是: https://gist.github.com/panSarin/4a221a0923927115584a 当我保存这个表格时,我收到了标题中的错误 NoMethodError (u
如何让 Html5 音频在点击时播放声音? (ogg 用于 Firefox 等浏览器,mp3 用于 chrome 等浏览器) 到目前为止,我可以通过 onclick 更改为单个文件类型,但我无法像在普
如果it1和it2有什么区别? std::set s; auto it1 = std::inserter(s, s.begin()); auto it2 = std::inserter(s, s.en
4.0.0 com.amkit myapp SpringMVCFirst
我目前使用 Eclipse 作为其他语言的 IDE,而且我习惯于不必离开 IDE 做任何事情 - 但是我真的很难为纯 ECMAScript-262 找到相同或类似的设置。 澄清一下,我不是在寻找 DO
我想将带有字符串数组的C# 结构发送到C++ 函数,该函数接受void * 作为c# 结构和char** 作为c# 结构字符串数组成员。 我能够将结构发送到 c++ 函数,但问题是,无法从 c++ 函
我正在使用动态创建的链接: 我想为f:param附加自定义转换器,以从#{name}等中删除空格。 但是f:param中没有转换器
是否可以利用Redis为.NET创建后写或直写式缓存?理想情况下,透明的高速缓存是由单个进程写入的,并且支持从数据库加载丢失的数据,并每隔一段时间持久保存脏块? 我已经搜查了好几个小时,也许是goog
我正在通过bash执行命令的ssh脚本。 FILENAMES=( "export_production_20200604.tgz" "export_production_log_2020060
我需要一个正则表达式来出现 0 到 7 个字母或 0 到 7 个数字。 例如:匹配:1234、asdbs 不匹配:123456789、absbsafsfsf、asf12 我尝试了([a-zA-Z]{0
我有一个用于会计期间的表格,该表格具有期间结束和开始的开始日期和结束日期。我使用此表来确定何时发生服务交易以及何时在查询中收集收入,例如... SELECT p.PeriodID, p.FiscalY
我很难为只接受字符或数字的 Laravel 构建正则表达式验证。它是这样的: 你好<-好的 123 <- 好的 你好123 <-不行 我现在的正则表达式是这样的:[A-Za-z]|[0-9]。 reg
您实际上会在 Repeater 上使用 OnItemDataBound 做什么? 最佳答案 “此事件为您提供在客户端显示数据项之前访问数据项的最后机会。引发此事件后,数据项将被清空,不再可用。” ~
我有一个 fragment 工作正常的项目,我正在使用 jeremyfeinstein 的 actionbarsherlock 和滑动菜单, 一切正常,但是当我想自定义左侧抽屉列表单元格时,出现异常
最近几天,我似乎平均分配时间在构建我的第一个应用程序和在这里发布问题!! 这是我的第一个应用程序,也是我们的设计师完成的第一个应用程序。我试图满足他所做的事情的外观和感觉,但我认为他没有做适当的事情。
我是一名优秀的程序员,十分优秀!