/*63.在字符串中删除特定的字符（字符串）。题目：输入两个字符串，从第一字符串中删除第二个字符串中所有的字符。例如，输入”They are students.”和”aeiou”，则删除之后的第一个字符串变成”Thy r stdnts.”。*/#include <stdio.h>#include <string.h>void moveout(char * c1, char * c2){    bool flag = false; //是否保留下来    int d = 0; //记录保留下来的字符需要移动几位    int i, j;    for(j = 0; c1[j] != ‘\0‘; j++)    {        flag = false;        for(i = 0; c2[i] != ‘\0‘; i++)        {            if (c1[j] == c2[i])             {                flag = true;                d++;                break;            }        }        if (flag == false)        {            c1[j - d] = c1[j];        }            }    c1[j - d] = ‘\0‘;}int main(){    char a[50] = "i want to go home";    char b[6] ="aeiou";    moveout(a, b);    return 0;}

#include <iostream>#include <cstring>char * string_del_characters( char * const src, const char * const dest ){   int destLen = strlen( dest );   int hash_table[256] = { 0 };   char * p = src;   int index = 0;   for( int i = 0; i < destLen; i++ )   {      hash_table[ (int)dest[i] ] = 1;   }   while( *p != ‘\0‘ )   {      if( 0 == hash_table[(int)*p] )      {         src[index++] = *p;      }      p++;   }   src[index] = ‘\0‘;   return src;}int main( int argc, char ** argv ){   char src[] = "They are students.";   char dest[] = "aeiou";   char * pResult = string_del_characters( src, dest );   std::cout << pResult << std::endl;}