还是关于字符串

thomasCJ 2009-06-20 06:56:20

char *a = "1000Mbps";
char *b = "10bps";
char *c = "1000000Mbps";
...
有上面这些字符串，现在我想把他们转换成比较合适的字符串来显示
比如a用1Gbps显示，b还是用10bps显示，c用1Tbps显示
请教下怎么实现比较好，有劳各位，最好可以给点码。。

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thomasCJ 2009-06-22

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5楼的方法可以，谢谢了

飞天御剑流 2009-06-20

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char a[] = "1000Mbps";
char b[] = "10bps";
char c[] = "1000000Mbps";
if( !strncmp( a, "1000M", 5 ) ) a[1] = 'G', strncpy( a+2, a+5, 4 );
if( !strncmp( c, "1000000M", 8 ) ) a[1] = 'T', strncpy( a+2, a+8, 4 );

yangkunhenry 2009-06-20

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#include "stdafx.h"

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

void change(const char *a,char *aa)

{

	int ia;

	ia=atoi(a);

	int count=0;

	while(ia/1000!=0)

	{

		ia/=1000;

		count++;

	}

	switch(count)

	{

	case 0:

		strcpy(aa,a);

		break;

	case 1:

		itoa(ia,aa,10);

		strcat(aa,"Gbps");

		break;

	case 2:

		itoa(ia,aa,10);

		strcat(aa,"Tbps");

		break;

	default:

		break;

	}

	return;

}

int _tmain(int argc, _TCHAR* argv[])

{

	char *a = "1000Mbps"; 

	char *b = "10bps"; 

	char *c = "1000000Mbps"; 



	int lena=strlen(a);

	char *aa=(char*)malloc(sizeof(char)*lena+1);

	memset(aa,0,lena+1);

	change(a,aa);

	printf("aa=%s\n",aa);



	return 0;

}

tkminigame 2009-06-20

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void convert(char* dst,char* src){
*dst++=*src++;//the first digit must be a non zero number
int zero = 0;
int digit = 0;
//count zero and digit length
while(true){
if('1'<=*src&&*src=<'9') {zero = 0;digit++;}
else if('0'==*src) {zero++;digit++;}
else if('k'==*src) {zero+=3;digit+=3;}
else if('M'==*src) {zero+=6;digit+=6;}
else if('G'==*src) {zero+=9;digit+=9;}
else if('T'==*src) {zero+=12;digit+=12;}
else if('\0'==*src||'b'==*src) break;
else{cout<<"exception:unknown format!"<<endl;return;}
src++;
}
//copy digits part
while(digit>0){
*dst++=*src++;
digit--;
}
digit=0;
char ch;
if(zero>=12) {ch = 'T';digit=zero-12;}
else if(zero>=9) {ch = 'G';digit=zero-9;}
else if(zero>=6) {ch = 'M';digit=zero-6;}
else if(zero>=3) {ch = 'K';digit=zero-3;}
else {ch = 'x';digit=zero; }

//copy the zeroes that cant be charged
while(digit>0){
*dst++='0';
digit--;
}
if(ch!='x'){
*dst++=ch;
}
*dst++='b';
*dst++='p';
*dst++='s';
*dst++='\0';
}

调用

char cha[255];

char *a = "1000Mbps";
char *b = "10bps";
char *c = "1000000Mbps";

convert(cha,a);
convert(cha,b);
convert(cha,c);