【C语】删除一个字符串中的指定字母

#define _CRT_SECURE_NO_WARNINGS
#include
#include
#include
char *deleteChar(char *str, char *setchar)//str--abc stechar--a
{
 int i = 0;
 int temp[200] = { 0 };
 if (setchar == NULL)
 {
  return str;
 }
 for (i = 0; i<strlen(setchar); i++)
 {
  temp[setchar[i]] = 1;
 }
 int index = 0;
 for (i = 0; i < strlen(str); i++)
 {
  if (!temp[str[i]])
  {
   str[index++] = str[i];
  }
 }
 str[index] = '\0';
 return str;
}
int main()
{
 char s1[] = "af";
 char s2[] = "abcdf";
 printf("%s", deleteChar(s2, s1));
 system("pause");
 return 0;
}