大约有 16,000 项符合查询结果（耗时：0.0205秒） [XML]
How do I read a text file of about 2 GB? [duplicate]
...
Note that this a READ ONLY editor!
– BuvinJ
Feb 25 '16 at 20:46
8
...
Number of lines in a file in Java
...eed to know the number of lines in these files, usually I open them up and read them line by line until I reach the end of the file
...
How to parse a CSV file in Bash?
I'm working on a long Bash script. I want to read cells from a CSV file into Bash variables. I can parse lines and the first column, but not any other column. Here's my code so far:
...
What is copy-on-write?
...data called A. Process 1, 2, 3, 4 each want to make a copy of it and start reading it, in a "Copy on write" system nothing is copied yet everything is still reading A. Now process 3 wants to make a change to it's copy of A, process 3 will now actually make a copy of A and create a new block of data ...
When and why are database joins expensive?
...e the rows are materialised.
Materialising the result involves bulk disk reads which are the most expensive aspect of the exercise by an order of magnitude. Performing a join, by contrast, logically requires retrieval of only the keys. In practice, not even the key values are fetched: the key hash...
Reading and writing binary file
I'm trying to write code to read a binary file into a buffer, then write the buffer to another file. I have the following code, but the buffer only stores a couple of ASCII characters from the first line in the file and nothing else.
...
How to read a text-file resource into Java unit test? [duplicate]
... library!
import java.io.File;
public class FooTest {
@Test public void readXMLToString() throws Exception {
java.net.URL url = MyClass.class.getResource("test/resources/abc.xml");
//Z means: "The end of the input but for the final terminator, if any"
String xml = new java...
Uploading Files in ASP.net without using the FileUpload server control
...nt.getElementById("myFile").files[0]; and you can even get the bytes using readAsArrayBuffer: stackoverflow.com/questions/37134433/… - but what are you going to do with all those bytes client-side? The OP wants to avoid the ASP .NET control-not server-side communication altogether. -1 to you.
...
libevent+protobuf轻松搭建tcpserver - C/C++ - 清泛网 - 专注C/C++及内核技术
...ent*)malloc(sizeof(struct event));
event_set(ev_accept, listen_fd, EV_READ|EV_PERSIST, on_accept, (void*)accept_param);
event_add(ev_accept, NULL);
return 0;
}
void on_accept(int fd, short ev, void *arg)
{
int client_fd = accept(fd, (struct sockaddr*)&client_addr, &client_l...
ProcessStartInfo hanging on “WaitForExit”? Why?
... use, there can be a problem:
If you wait for the process to exit before reading StandardOutput the process can block trying to write to it, so the process never ends.
If you read from StandardOutput using ReadToEnd then your process can block if the process never closes StandardOutput (for exampl...