【C语言】从文件每次读入一行字符串，并把这些字符串添加到字符串数组中

问题描述

hello
jjjjj
ddddd
44444l
hello
hello
jjjjj
ddddd
jjjjj
ddddd

实现

\n

\0

#include <stdio.h>
#include<string.h>
int main()
{
FILE * pFile;
char mystring [100];
char* res[999];    //store final result

int p=0;    //pointer of res[]
pFile = fopen ("rwq.txt" , "r");
if (pFile == NULL)
perror ("Error opening file");
else {
while ( fgets (mystring , 100 , pFile) != NULL )    //read a line every time

{
int len = strlen(mystring);
if(mystring[len-1]=='\n')
mystring[len-1] = '\0';

char* tmp = (char*)malloc(100*sizeof(char));
memcpy(tmp,mystring,len);//usage memcpy(dest, src, strlen(src));
res[p++] = tmp;
//puts (mystring);//put string every time
}
fclose (pFile);

//  int re_len = sizeof(res)/sizeof(res[0]);//wrong way to get arry lenth
//  printf("%d\n",re_len);
for(int i=0;i<p;i++)
printf("%s\n",res[i]);
}
return 0;
}

REF

char* s = "hello";
int n = strlen(s);
char a[100];
for (int i=0;i<n;i++)
{
a[i]=*(s++);
}