小编Val*_*ino的帖子

我一直在谷歌搜索这个问题的简单答案,但似乎没有一个.任何人都可以告诉我subprocess模块是否并行执行调用？Pythong.org文档建议它可以用来产生新的进程,但它没有提到它们是否并行.如果他们可以并行完成,你可以给我一个例子或链接我吗？

I have a pandas dataframe structured like this:

      value
lab        
A        50
B        35
C         8
D         5
E         1
F         1

This is just an example, the actual dataframe is bigger, but follows the same structure.
The sample dataframe has been created with this two lines:

df = pd.DataFrame({'lab':['A', 'B', 'C', 'D', 'E', 'F'], 'value':[50, 35, 8, 5, 1, 1]})
df = df.set_index('lab')

I would like to aggregate the rows whose value is smaller that a given threshold: all …

我是编码新手，在将名为“ test.txt ”的文本文件上传到 ftp 服务器时遇到问题。

这是我的代码：

void nointernet()
{
std::cout << "No internet connection." << std::endl;
}

int upload()
{
HINTERNET hInternet = InternetOpen(NULL, INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
if (!hInternet)
{
    nointernet(); 
}


HINTERNET hFtpSession = InternetConnect(hInternet, "FTPHOST", INTERNET_DEFAULT_FTP_PORT, "FTPUSER", "FTPPASS", INTERNET_SERVICE_FTP, INTERNET_FLAG_PASSIVE, 0);
if (!hFtpSession)
{
    InternetCloseHandle(hInternet);
    nointernet(); 

}

FtpPutFile(hFtpSession, "D:/test.txt", "test.txt", FTP_TRANSFER_TYPE_BINARY, 0); 
std::cout << "File Uploaded." << std::endl;
InternetCloseHandle(hFtpSession); 
InternetCloseHandle(hInternet); 
return 0;
}

int main() {
upload();
return 0;
}

欢迎任何反馈。