C语言中字符切割函数split的实现 (不使用库函数）实现字符串拆分函数strsplit(str1...
c\u8bed\u8a00\u81ea\u5df1\u7f16\u5199\u4e00\u4e2asplit\u5b57\u7b26\u4e32\u5206\u5272\u51fd\u6570\u8fd9\u4e2a\u662f\u7528c++\u5199\u7684\u4e0d\u8fc7\u548cc\u7684\u539f\u7406\u4e5f\u5dee\u4e0d\u591a\u6211\u8fd0\u884c\u8fc7\u4e86\uff0c\u6709\u4ec0\u4e48\u95ee\u9898\u518d\u95ee\u5427\uff0cc\u4e0d\u77e5\u9053\u80fd\u5426\u8fd0\u884c\uff0c\u4e0d\u8fc7\u73b0\u5728c/c++\u7a0b\u5e8f\u8bbe\u8ba1\u8bd5\u9a8c\u7cfb\u7edf\u901a\u5e38\u90fd\u6709\u5d4c\u5957c++\uff0c\u4f60\u6253\u5f00c\u754c\u9762\u65f6\u5355\u51fbvc6.0\u521b\u5efa\u4e00\u4e2a\u9879\u76ee\u8fd0\u884c\u5c31\u53ef\u4ee5\u4e86\u3002
#include
using namespace std;
char** split(char p[],char c,int k)
{
int i,m,j;
char **q;
q=(char**)new char*[k];
for(i=0;i<k;i++)
q[i]=(char*)new char*[20];
i=0;
j=0;
m=0;
while(p[i])
{
if(p[i]!=',')
{
q[j][m++]=p[i++];
}
else
{
q[j][m]='\0';
j++;
m=0;
i++;
}
}
q[k-1][m]='\0';
for(i=0;i<4;i++)
{
cout<<q[i];
cout<<endl;
}
return q;
}
void main()
{ int k;
char p[]="ab,cde,efgh,ghi32";
char c=',';
int i=0,j=0,m=0;
while(p[i])
{
if(p[i]==',')
j++;
i++;
}
j=j+1;//\u63a5\u53d7\u5230\u5e95\u6709\u591a\u5c11\u4e2a\u5355\u8bcd\u5728\u5206\u5272\u540e\u901a\u8fc7\u9017\u53f7\u53bb\u5224\u65ad
k=j;
char**q=split(p,c,k);
printf("\n");
for(i=0;i<4;i++)
{
cout<<q[i];
cout<<endl;
}
}
#include "stdafx.h"
#include
char a[10]="abcdefg";
int main(int argc, char* argv[])
{
void strsplit(char*,int,char*);
char *str1=a;
char *str2=new char;
*str2 =NULL;
int c=3;
printf("\u6e90\u5b57\u7b26\u4e32str1=%s\n",str1);
int a = strlen(str1);
strsplit(str1,c,str2);
printf("str1=%s\nstr2=%s\n",str1,str2);
str2 =NULL;
delete []str2;
return 0;
}
void strsplit(char* str1,int c,char* str2)
{
char *tmp=str1+c;
for (int i=c;i<strlen(str1);i++)
{
*str2 = *tmp;
*str2++;
*tmp++;
}
*str2++='\0';
str1+=c;
*str1 = '\0';
}
#include <stdio.h>
#include <string.h>
// 将str字符以spl分割,存于dst中，并返回子字符串数量
int split(char dst[][80], char* str, const char* spl)
{
int n = 0;
char *result = NULL;
result = strtok(str, spl);
while( result != NULL )
{
strcpy(dst[n++], result);
result = strtok(NULL, spl);
}
return n;
}
int main()
{
char str[] = "what is you name?";
char dst[10][80];
int cnt = split(dst, str, " ");
for (int i = 0; i < cnt; i++)
puts(dst[i]);
return 0;
}
c语言中 有切割字符串的函数啊！
strtok函数（const char *str， const char *ch）
第一个是字符串，第二个是以那个字符做切割。
例子：
#include <stdio.h>
#include <string.h>
int main(void)
{
char s[] = "123-sldkf-123ls-343434-dfjdlkfj-dflcmvn";
char *delim = "-";
char *p;
printf("%s ", strtok(s, delim));
while((p = strtok(NULL, delim))
printf("%s ", p);
printf("\n");
return 0;
}
char s[] = "dlkjf-sdlkfjsdf\lsdkljfl'sldkjf\sdkfjsdlf\lskdjfls";
如果想用-和\两个符号切割的话
char *delim = "-\";
这样就可以了
找了很久都没找到个靠谱的split函数。
我还是自己写一个分享在这里吧。英语不好请见谅：
/**
split the string by delimiter.
need to use "free" method to release the each of string in array.
@param targetString splited String
@param delimiter the delimiter to split the string
@param length the array`s length of result
@return array of splited string(need release manually)
*/
char** split(const char * const targetString, const char * const delimiter,int * const length){
*length=0;
char ** resultString=NULL;
char inputString[strlen(targetString)];
strcpy(inputString,targetString);
char inputDelimiter[strlen(delimiter)];
strcpy(inputDelimiter,delimiter);
char * splitedString = strtok(inputString, inputDelimiter);
while (splitedString){
(*length)++;
char * resultChar = NULL;
resultChar=malloc(strlen(splitedString));
strcpy(resultChar,splitedString);
resultString=realloc(resultString,(*length) * sizeof(char *));
resultString[(*length)-1] =resultChar;
splitedString=strtok(NULL, delimiter);
}
return resultString;
}
int main(int argc, const char * argv[]) {
char * ch1 ="abc
ABC
";
char * ch2 ="
";
char * ch3 ="";
int length1=0;
int length2=0;
char ** result1 = split(ch1, ch2, &length1);
for (int i=0;i<length1;i++){
// printf("%s
",result[i]);
char ** result2 = split(result1[i], ch3, &length2);
for (int j=0;j<length2;j++){
printf("%s--",result2[j]);
free(result2[j]); // release resource
}
printf("
");
free(result1[i]); // release resource
}
printf("Done
");
return 0;
}
绛旓細include <stdio.h>#include <string.h>// 灏唖tr瀛楃浠pl鍒嗗壊,瀛樹簬dst涓紝骞惰繑鍥炲瓙瀛楃涓鏁伴噺int split(char dst[][80], char* str, const char* spl){ int n = 0; char *result = NULL; result = strtok(str, spl); while( result != NULL ) { strcpy(dst[n+...
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