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代码说明：

  51单片机中使第一个灯闪烁的c程序在压缩包中包含c程序和keil工程等等，需要的可自行打开观看(The C program which makes the first lamp flicker in the 51 single chip computer includes C program and keil project in the compression package, etc. It can be opened and watched by itself if needed.)