这是单片机C语言位操作函数！给大家参考使用，可以直接在单片机中引用，不需要自己去编写，弥补了C语言位操作没有汇编灵活的缺点-This is the C language SCM - manipulation functions. For your reference use, can be directly invoked in SCM, you do not need to do to prepare. compensate for the C-language compilation flexible operation without the shortcomings