无题（四）续：分割字符串（在堆空间分配内存）

<pre name="code" class="cpp">#include "stdio.h"#include "stdlib.h"#include "string.h"int spitString03(const char *buf1, char c, char **mypp, int *num){int ret = 0;char *p = NULL;char *pTmp = NULL;int ncount = 0;if (buf1==NULL ||  num==NULL){return -1;}//步骤1 初始化条件 pTmp,p都执行检索的开头p = buf1;pTmp = buf1;do {//步骤2 strstr strchr，会让p后移 在p和pTmp之间有一个差值p = strchr(p, c);if (p == NULL) //没有找到则跳出来{break;}else {//挖字符串strncpy(mypp[ncount], pTmp, p-pTmp);mypp[ncount][p-pTmp] = '\0';ncount++;//步骤3 让p和pTmp重新初始化，达到检索的条件pTmp = p  = p + 1;}} while (*p != '\0');//printf("ncout:%d\n", ncount);*num = ncount;return ret;}//分配内存函数char **getMem(int num){int i = 0;//char **pp = (char **)malloc(sizeof(num*sizeof(char *)));char **pp = (char **)malloc(num* sizeof(char *) );if (pp == NULL){return NULL;}for (i=0; i<num; i++){pp[i] = (char *)malloc(100);if (pp[i] == NULL){return NULL;}}return pp;}int FreeMem(char **pp, int num){int i = 0;if (pp == NULL){ return -1;}for (i=0; i<num; i++){free(pp[i]);}free(pp);return 0;}//对付1个入口多个出口的问题。。。有方法//采用goto语句进行处理  将要释放的内存或者后期处理的语句 放到goto表示符的后面void main(){intret = 0, i = 0;intnum = 0;intnumArray = 10;const char*buf1 = "abcdef,acccd,";charc = ',';char**pp =  NULL;char**pp2 =  NULL;//"ab"//char *buf = (char *)malloc(strlen("ab") + 1);//strcpy(buf, "ab");pp = getMem(numArray);if (pp == NULL){ret = -1;printf("func getMem() err:%d\n", ret);goto End;}pp2 = getMem(numArray);if (pp2 == NULL){ret = -2;printf("func getMem() err:%d\n", ret);goto End;}ret =  spitString03(buf1, c, pp, &num);if (ret == 0) //故意写错{printf("func spitString() err:%d\n", ret);goto End;}for (i=0; i<num; i++){printf("%s\n", pp[i]);}End:if (pp != NULL){FreeMem(pp, numArray);}if (pp2 != NULL){FreeMem(pp2, numArray);}system("pause");}