大约有 16,000 项符合查询结果（耗时：0.0313秒） [XML]
How to get a value from a cell of a dataframe?
...at this, I have no idea. The question is a little strangely worded, but it reads like the first half is immaterial to the latter. (at is a really nice answer, though I find it strange it's like ix :) )
– Andy Hayden
Oct 31 '16 at 21:45
...
Why is it slower to iterate over a small string than a small list?
...y_UCS4 ch;
PyObject *res;
if (!PyUnicode_Check(self) || PyUnicode_READY(self) == -1) {
PyErr_BadArgument();
return NULL;
}
if (index < 0 || index >= PyUnicode_GET_LENGTH(self)) {
PyErr_SetString(PyExc_IndexError, "string index out of range");
re...
How do I limit the number of results returned from grep?
...m 10 PATTERN [FILE]
From man grep:
-m NUM, --max-count=NUM
Stop reading a file after NUM matching lines. If the input is
standard input from a regular file, and NUM matching lines are
output, grep ensures that the standard input is positioned to
just after...
Microsoft Azure: How to create sub directory in a blob container
...
Can you share C# sample? blob.The name is read only property so we are not able to create a blob.Name with "/"
– ABB
Aug 8 '17 at 6:47
add a c...
How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
... should go on SU... migration is certainly an option, but more programmers read questions here, so here goes).
12 Answers
...
How to get the user input in Java?
...nner(System.in);
String s = scan.next();
int i = scan.nextInt();
BufferedReader and InputStreamReader classes
import java.io.BufferedReader;
import java.io.InputStreamReader;
//...
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
String s = br.readLine();
int i = Integer.p...
Reference requirements.txt for the install_requires kwarg in setuptools setup.py file
... whether it really makes sense for your use case. And try to stay as well-read as you can about the current state of building, packaging, and publishing in Python, just in case things get better. But don't hold your breath.
– Jonathan Hanson
Sep 21 '16 at 17:...
Correct format specifier to print pointer or address?
...its. The (uintptr_t) cast is unambiguously recommended by GCC when it can read the format string at compile time. I think it is correct to request the cast, though I'm sure there are some who would ignore the warning and get away with it most of the time.
Kerrek asks in the comments:
I'm a ...
REST API Authentication
...
Please read this question and the answer provided by Les Hazelwood (author of Apache Shiro).
– justin.hughey
Nov 3 '14 at 15:11
...
Create a tar.xz in one command
...ectory/ | xz -z - > directory.tar.xz
Explanation
tar cf - directory reads directory/ and starts putting it to TAR format. The output of this operation is generated on the standard output.
| pipes standard output to the input of another program...
... which happens to be xz -z -. XZ is configu...