摘要: 蜂鸣器:有源蜂鸣器和无源蜂鸣器 点击查看代码 #include <stc89c5xrc.h> #define u16 unsigned int #define u8 unsigned char #define beep P23 void delay(u16 c) { u16 a,b; for(a=c 阅读全文
posted @ 2024-03-19 19:45 caoruipeng 阅读(24) 评论(0) 推荐(0)
摘要: 实现1:位移+取反实现 点击查看代码 #include <stc89c5xrc.h> #define u16 unsigned int #define u8 unsigned char void delay(u16 c) { u16 a,b; for(a=c;a>0;a--) for(b=115;b 阅读全文
posted @ 2024-03-19 18:34 caoruipeng 阅读(38) 评论(0) 推荐(0)