如何从用C字符串中的给定索引处删除字符？ [英] How to remove the character at a given index from a string in C?

问题描述

我如何删除从字符串中的字符？

How do I remove a character from a string?

如果我有字符串ABCDEF和我想删除B我该怎么做？

If I have the string "abcdef" and I want to remove "b" how do I do that?

删除第一的性格很容易与此code：

Removing the first character is easy with this code:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
   char word[] = "abcdef";
   char word2[10];

   strcpy(word2,&word[1]);

   printf("%s\n", word2);

   return 0;
}

和

strncpy(word2,word,strlen(word)-1);

会给我不会在最后字符字符串，但我还是没弄明白如何在一个字符串的中删除字符。

will give me the string without the last character, but I still didn't figure out how to remove a char in the middle of a string.

推荐答案

memmove与能处理重叠的区域，我会尝试这样的事情（未测试，也许+ -1号）

Memmove can handle overlapping areas, I would try something like that (not tested, maybe +-1 issue)

char word[] = "abcdef";  
int idxToDel = 2; 
memmove(&word[idxToDel], &word[idxToDel + 1], strlen(word) - idxToDel);

在ABCDEF

在abdef

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