c库函数-字符串

一 strok:从字符串中按照分隔符提取所有字串

 char s[] = "水发产品,47.6,不合格,mg/kg,17-05-21 15:04;";
  char *delim = ",;"; //分隔符列表
  char *p;

printf("%s ", strtok(s, delim));
    while((p = strtok(NULL, delim)))     //第一次给源字符串，后续给null
        printf("%s ", p);