自己寫的strtok

#include "stdio.h"</p><p>char* strtok(char *s,char *delim)<br />{<br />static char *last = s;//儲存剩餘字串<br />char *start=NULL;//每次返回字串的起始地址<br />char *str=NULL;</p><p>if (last==NULL)<br />{<br />return NULL;<br />}</p><p>if (s==NULL)<br />start = last;<br />else<br />start = s;//字串不為空白的時候</p><p>str = start;<br />char *cp;<br />while(*str)<br />{<br />cp = delim;<br />while(*cp)<br />{<br />if(*str==*cp)<br />{<br />*str = '/0';<br />last = str+1;<br />return start;<br />}<br />cp++;<br />}<br />str++;<br />}<br />if (*str=='/0')<br />{<br />last = NULL;<br />return start;<br />}<br />return NULL;</p><p>}<br />void main()<br />{</p><p>char str[]={"test:is:a,string:toking"};</p><p>char *str1 =strtok(str,":,");<br />int x=1;</p><p>printf("%d:%s/n",x,str1);</p><p>while(1)<br />{<br />str1 = strtok(NULL,":,");<br />if(str1==NULL)<br />{<br />printf("完成/n");<br />break;<br />}<br />x++;<br />printf("%d:%s/n",x,str1);</p><p>}<br />}