c语言生成随机字符文本行

1.源码实现 

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
int main()
    FILE *fp = NULL;
    char buf[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz ,,./?\\()*&^%$#@!~`\"{}[]|<>";
    char tmp[1024*1024];
    int a = 0;
    int i, j, k;
    int len = strlen(buf);
    srand((unsigned)time(NULL));
    fp = fopen("1.txt", "wb");
    if(fp == NULL)
        return -1;
    for(k=0; k<1024; k++)
        for(j=0; j<1024; j++)
            for(i=0; i<1023; i++)
                a = rand() % len;
                tmp[1024*j+i] = buf[a];
            tmp[1024*j+i] = '\n';
        fwrite(tmp, 1024*1024, 1, fp);
    fclose(fp);
    return 0;

2.编译源码


$ gcc -o example example.c

3.运行程序及其结果