由于没有什么技术含量，故无注释，自行领悟

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int getFileLen(FILE* fp)
{
	if (fp == NULL)
	{
		return -1;
	}
	char* buf = (char*)malloc(sizeof(char) * 1024);
	int len = 0;
	if (buf == NULL)
	{
		return -1;
	}
	while (fgets(buf, 1024, fp) != NULL)
	{
		len++;
	}
	fseek(fp, 0, SEEK_SET);
	return len;
}

void readFileData(FILE* fp, int len, char** pArray)
{
	if ((fp == NULL) || (len <= 0) || (pArray == NULL))
	{
		return;
	}
	char* buf = (char*)malloc(sizeof(char) * 1024);
	memset(buf, 0, 1024);
	if (buf == NULL)
	{
		return;
	}
	int pos = 0;
	int bufLen = 0;
	while (fgets(buf, 1024, fp) != NULL)
	{
		bufLen = strlen(buf) + 1;
		char* temp = (char*)malloc(sizeof(char) * bufLen);
		strcpy(temp, buf);
		pArray[pos] = temp;
		memset(buf, 0, 1024);
		pos++;
	}
}

void printFileData(char** pArray, int len)
{
	if (pArray == NULL || len <= 0)
	{
		return;
	}
	for (int i = 0; i < len; i++)
	{
		printf("%s", pArray[i]);
	}
}

void freeSpace(char** pArray, int len)
{
	if (pArray == NULL)
		return;

	for (int i = 0; i < len; i++)
		free(pArray[i]);
}

void readTest()
{
	FILE* fp = fopen("C:/Users/Administrator/Desktop/test.txt", "r");
	if (fp == NULL)
	{
		printf("Open Fail\n");
		return;
	}
	int len = getFileLen(fp);
	char** pArray = (char**)malloc(sizeof(char*) * len);
	if (pArray == NULL)
	{
		return;
	}
	readFileData(fp, len, pArray);
	printFileData(pArray, len);
	freeSpace(pArray, len);
	fclose(fp);
	free(pArray);
	fp = NULL;
	pArray = NULL;
}

int main(void)
{
	readTest();
	return EXIT_SUCCESS;
}