库函数的源代码，该函数集省略了不少TC标准头文件，读者使用时要自行添加。而且由于该函数集内部函数间有的有调用关系，读者拆卸时要谨慎。-Library function source code, the function sets omit a lot of TC standard header file, and readers use to add their own. And because the function sets the internal function has called