对应前33个特殊用途编码的释义字符串，设立一个char *型指针数组依次存放它们的首地址，用一个for循环列表输出。对以后的编码，对应输出其字符即可。代码如下：
//#include "stdafx.h"//If the vc++6.0, with this line.
#include "stdio.h"
int main(void){
char *a[33]={"NUL(null)","SOH(strt of heading)","STX(start of text)",
"ETX(end of text)","EOT(end of transmission)","ENQ(enquiry)",
"ACK(acknowledge)","BEL(bell)","BS(backspace)",
"TAB(horizonfal tab)","LF(NL line feed, new_line)","VT(vertical tab)",
"FF(NP form feed, new page)","CR(carriage return)","SO(shift out)",
"SI(shift in)","DLE(data link escape)","CC1(device control 1)",
"DC2(device control 2)","DC3(device control 3)","DC4(device control 4)",
"NAD(negative acknowledge)","SYN(synchronous idle)","ETB(end of trans, block)",
"CAN(cancel)","EM(end of medium)","SUB(substitute)",
"ESC(escage)","FS(file separator)","GS(group separator)",
"RS(record separator)","US(unit separator)","SPACE"},i;
printf("Dec\tHex\tChar\n");
for(i=0;i<33;printf("%d\t%X\t%s\n",i++,i,a[i]));
for(;i<127;printf("%d\t%X\t%c\n",i++,i,i));
printf("%d\t%X\t%s\n",i,i,"DEL");
return 0;
}
