C/C++ easily implements file downloading

First, let’s understand a few APIs

_getcwd

Gets the current working directory.

char *_getcwd( char *buffer, int maxlen );

buffer

Storage location for the path .

maxlen

Maximum length of the path in characters: char for _getcwd and wchar_t for _wgetcwd.

Easy to know: buffer is the path

maxlen: Is the length

The function is to get the path of the current program

Next API

URLDownloadToFile function

Downloads bits from the Internet and saves them to a file.

char *_getcwd( char *buffer, int maxlen ); wchar_t *_wgetcwd( wchar_t *buffer, int maxlen );

The following is the code:

#include  #include  #include  #pragma comment(lib,"URlmon") int main() { char buffer[MAX_PATH]; _getcwd(buffer, MAX_PATH); strcat_s(buffer, "//1.jpg"); HRESULT Result = URLDownloadToFileA(NULL, "http://112.22.245.11:443/down/de0243d60205717a2a74aea53c0c500c-46353/1.jpg?cts=yd-f-U13274580& ctp=111A23A228A125&ctt=1484747960&limit=1&spd=1300000&ctk=4ab73a4a76e47ad0b181d0f9fc47b6a1&chk=de0243d60205717a2a74aea53c0c500c-46353", buffer, 0, NULL); switch (Result) { case S_OK:printf("The download started successfully.\n");break; case E_OUTOFMEMORY: printf("The buffer length is invalid, or there is insufficient memory to complete the operation.\n"); break; } return 0; }

Screenshot of the program running:

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