内容:<br>sound作名词时,什么情况下为可数的,什么情况下为不可数的<br>提交人:<br>海市蜃楼<br>时间:<br>主题:<br>a<br>内容:<br>A:<br>sound作名词,意为“声音”,有可数和不可数两种用法。如:<br>①Strange sounds came from the next room.(作可数名词)<br>奇怪的声音来自隔壁房间。<br>②Sound travels at 340 metres per second on air.(作不可数名词)。<br>声音以每秒340米的速度在空气中传播<br>提交人:<br>tchliudq<br>时间:
A string that specifies the sound to play. If this parameter is NULL, any currently playing waveform sound is stopped. To stop a non-waveform sound, specify SND_PURGE in the fdwSound parameter.<br>Three flags in fdwSound (SND_ALIAS, SND_FILENAME, and SND_RESOURCE) determine whether the name is interpreted as an alias for a system event, a filename, or a resource identifier. If none of these flags are specified, PlaySound searches the registry or the WIN.INI file for an association with the specified sound name. If an association is found, the sound event is played. If no association is found in the registry, the name is interpreted as a filename.<br>hmod<br>Handle of the executable file that contains the resource to be loaded. This parameter must be NULL unless SND_RESOURCE is specified in fdwSound.<br>fdwSound<br>Flags for playing the sound. The following values are defined:<br>SND_APPLICATION<br>The sound is played using an application-specific association.<br>SND_ALIAS<br>The pszSou