75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
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编写一个程序, 由主线程从键盘接收输入的网址（如http://www.baidu.com）, 由子线程完成网址的下载并写入到tmpN.html临时文件中, 并在子线程中打印输出结果.输入exit时, 退出程序.
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【提示】基于execlp()函数执行`curl 网址 > tmp1.html`, 其中N是第几次请求.
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*/
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#include <stdio.h>
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#include <pthread.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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typedef struct url_info_s
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{
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char *url;
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int N;
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} URL_INFO;
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void *download(void *data)
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{
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URL_INFO *info = (URL_INFO *)data;
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char end_name[20];
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sprintf(end_name, "tmp%d.html", info->N);
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// execlp("curl", "curl", info->url, "-o", end_name, NULL);
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// 注意：这里使用 "-o" 参数指定输出文件名
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char command[200];
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sprintf(command, "curl %s -o %s", info->url, end_name);
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system(command);
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sprintf(command, "cat %s", end_name);
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system(command);
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return NULL;
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}
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// void *view(void *data)
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// {
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// URL_INFO *info = (URL_INFO *)data;
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// char end_name[20];
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// sprintf(end_name, "tmp%d.html", info->N);
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// execlp("cat", "cat", end_name, NULL);
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// // 使用 execlp 调用 cat 命令打印输出结果
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// return NULL;
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// }
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int main()
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{
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int n = 1; // 初始化 n 的值为 1
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char buf[100];
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while (1)
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{
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printf("请输入网址（输入exit退出）：");
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fgets(buf, sizeof(buf), stdin);
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buf[strlen(buf) - 1] = '\0';
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if (strcmp(buf, "exit") == 0)
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{
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break;
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}
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URL_INFO urls;
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urls.url = buf;
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urls.N = n++;
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pthread_t download_tid, view_tid;
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pthread_create(&download_tid, NULL, download, &urls);
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pthread_join(download_tid, NULL);
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// pthread_create(&view_tid, NULL, view, &urls);
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// pthread_join(view_tid, NULL);
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}
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printf("---over---\n");
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return 0;
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}
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