Arieslllll的博客

#include<stdio.h>#include<stdlib.h>int main(void){ FILE *fp1; FILE *fp2; int ch; char filename1[30]; sprintf(filename1, "%s%s", "hello", ".txt"); fp1 = fopen(filename1, "w"); fprintf(fp1, "%s", "i love you!"); fclose(fp1); /*此处如果没

关于结构体指针内存分配的问题#include<stdio.h>#include<stdlib.h>struct Person{ char name[128]; char tel[128]; struct Person *next;};int main(void){ struct Person *contacts = NULL; struct Person *person; person = (struct Person *)malloc(sizeof