【IT168技术文档】 memcpy
原型：extern void *memcpy(void *dest, void *src, unsigned int count);
用法：#include <string.h>
功能：由src所指内存区域复制count个字节到dest所指内存区域。
说明：src和dest所指内存区域不能重叠，函数返回指向dest的指针。
举例：
// memcpy.c
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#include <stdio.h>
#include <string.h>
int main(int argc, char* argv[])
{
char *s="Golden Global View";
char d[20];
clrscr();
memcpy(d,s,strlen(s));
d[strlen(s)]='\0';
printf("%s",d);
getchar();
return 0;
}
截取view
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#include <string.h>
int main(int argc, char* argv[])
{
char *s="Golden Global View";
char d[20];
memcpy(d,s+14,4);
//memcpy(d,s+14*sizeof(char),4*sizeof(char));也可
d[5]='\0';
printf("%s",d);
getchar();
return 0;
}
输出结果：
View
初始化数组
char msg[10];
memcpy(msg,0,sizeof(msg));
