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基于51单片机可修改错误功能的计算器工作原理解析utiliTIes.h#ifndefUTILITIES_H_INCLUDED#defineUTILITIES_H_INCLUDEDtypedefunsignedcharuchar，BYTE，uint8;typedefunsignedintuint，WORD，uint16;typedefunsignedlongulong，DWORD，uint32;typedefcharint8;typedefintint16;typedeflongint32;typedefunsignedchar*uchar_p;typedefunsignedint*uint_p;typedefunsignedlong*ulong_p;typedefchar*char_p;typedefint*int_p;typedeflong*long_p;#endif/UTILITIES_H_INCLUDEDkeyBoard.c#include#include“utilities.h”sbitKEY_OUT_3=P2