使用库函数 strcpy 而不使用 strcpy 复制字符串的 C 程序。

字符串拷贝C程序

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


int main()
{
  char source[1000], destination[1000];

  printf("Input a string\n");
  gets(source);

  strcpy(destination, source);

  printf("Source string: %s\n", source);
  printf("Destination string: %s\n", destination);

  return 0;
}

程序输出：

在不使用 strcpy 的情况下在 C 中复制字符串

#include <stdio.h>


int main()
{
  int c = 0;
  char s[1000], d[1000] = "What can I say about my programming skills?";

  printf("Before copying, the string: %s\n", d);

  printf("Input a string to copy\n");
  gets(s);

  while (s[c] != '\0') {
    d[c] = s[c];
    c++;
  }

  d[c] = '\0';

  printf("After copying, the string: %s\n", d);

  return 0;
}

程序的输出：

Before copying, the string: What can I say about my programming skills?
Input a string to copy
My programming skills are improving.            
After copying, the string: My programming skills are improving.

创建一个函数来复制一个字符串

#include <stdio.h>


void copy_string(char [], char []);

int main() {
  char s[1000], d[1000];
   
  printf("Input a string\n");
  gets(s);

  copy_string(d, s);
  printf("The string: %s\n", d);

  return 0;
}

void copy_string(char d[], char s[]) {
  int c = 0;
   
  while (s[c] != '\0') {
    d[c] = s[c];
    c++;
  }
  d[c] = '\0';
}

使用指针复制字符串的C程序

使用指针复制字符串的函数。

void copy_string(char *target, char *source) {
   while (*source) {
      *target = *source;
      source++;
      target++;
   }
   *target = '\0';
}