读取文件内容并打印

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

//命令: ./a.out file
//功能: 将file读取到buffer,然后打印出来 
int main(int argc, char *argv[])
{
    char buf[1024] = {};
    FILE *fp = NULL;
    int ret;

    fp = fopen(argv[1], "r");

    ret = fread(buf, sizeof(char), sizeof(buf), fp);
    if (ret <= 0)
    {
        printf("fread end or error!\n");
        return -1;
    }

    printf("readCharNum= %d\n", ret);    //打印读取file的字符数
    printf("buf = %s\n", buf);    //打印file的内容
    
    return 0;
}

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

//命令: ./a.out file
//功能: 将file读取到buffer,然后打印出来 
int main(int argc, char *argv[])
{
    char buf[1024] = {};
    FILE *fp = NULL;
    int ret;

    fp = fopen(argv[1], "r");

    ret = fread(buf, sizeof(char), sizeof(buf), fp);
    if (ret <= 0)
    {
        printf("fread end or error!\n");
        return -1;
    }

    printf("readCharNum= %d\n", ret);    //打印读取file的字符数
    printf("buf = %s\n", buf);    //打印file的内容
    
    return 0;
}