//十进制转换BCD码 int decimal_bcd_code(int decimal)//十进制转BCD码 { int sum = 0, i;//i计数变量，sum返回的BCD码 for ( i = 0; decimal > 0; i++) { sum |= ((decimal % 10 ) << ( 4*i)); decimal /= 10; } return sum; } //BCD码转换十进制 int bcd