跳入c++ 5 memmove 字符串截取

#include<iostream>#include<string.h> //include memmoveint main(){    char buffer[10]="12345";//必须声明缓冲区大小,不能char * buffer    memmove(&buffer[3],&buffer[2],3); //移动3个字符,因为字符串最后的\0    buffer[3]='.';    std::cout<<buffer<<std::endl;}