我有从网页上下载汇率的python脚本,我想从中创建C++程序,这里是我到目前为止:错误:无法在初始化时将'std :: string'转换为'char *'
include iostream
include time.h
include stdio.h
include curl/curl.h
include curl/easy.h
include string
define CURL_STATICLIB
using namespace std;
void dat(string &d){
time_t rawtime;
struct tm * timeinfo;
char datum[80];
time (&rawtime);
timeinfo=localtime(&rawtime);
strftime(datum,80,"%d%m%y",timeinfo);
d=datum;
}
size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream) {
size_t written;
written = fwrite(ptr, size, nmemb, stream);
return written;
}
int main()
{
string f;
dat(f);
string l1="http://www.hnb.hr/tecajn/f";
string l2=".dat";
string linkz=l1+f+l2;
cout << linkz;
CURL *curl;
FILE *fp;
CURLcode res;
char *url = linkz;
char outfilename[FILENAME_MAX] = "/home/tomi/data.txt";
curl = curl_easy_init();
if (curl) {
fp = fopen(outfilename,"wb");
curl_easy_setopt(curl, CURLOPT_URL, url);
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
res = curl_easy_perform(curl);
curl_easy_cleanup(curl);
fclose(fp);
return 0;
}
它给我这个错误,当我尝试编译,我发现用于下载TXT algorythm,所以我希望它是正确的
你好,@Tomislav。欢迎来到Stack Overflow。作为回答你的问题的人的礼貌,请**粘贴**正在编译的**精确**代码(不要重新键入它,而是复制粘贴它)。同时粘贴您看到的确切错误消息。在这个程序的情况下,有很多错误 - 它当然不是完全相同的程序,你试图编译。 –