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C51入门4，蜂鸣器实验
实验一：滴滴间断声光报警信号实验程序：//滴滴间断声光报警信号实验 #define uchar unsigned char #define uint unsigned int #define ulong unsigned long#include char code dx516[3] _at_ 0x003b; //端口设置
实验一：滴滴间断声光报警信号实验程序：//滴滴间断声光报警信号实验 #define uchar unsigned char #define uint unsigned int #define ulong unsigned long#include char code dx516[3] _at_ 0x003b; //端口设置
