大约有 16,000 项符合查询结果（耗时：0.0269秒） [XML]
Subprocess changing directory
...ss.PIPE, universal_newlines=True) # run our new command
out = p.stdout.read()
err = p.stderr.read()
# read our output
if out != "":
print(out)
os.chdir(out[0:len(out) - 1]) # if we did get a directory, go to there while ignoring the newline
if err != "":
...
Regular expression matching a multiline block of text
...I wouldn't use regular expressions at all. Just something like this:
def read_amino_acid_sequence(path):
with open(path) as sequence_file:
title = sequence_file.readline() # read 1st line
aminoacid_sequence = sequence_file.read() # read the rest
# some cleanup, if necessar...
ICollection Vs List in Entity Framework
...first in to designing a few Entity Framework applications. I really didn't read that much documentation and I feel like I am suffering for it now.
...
MySQL JOIN the most recent row only?
...
People should (please) also read the following answer (from Danny Coulombe), because this answer (sorry Daniel) is terribly slow with longer queries / more data. Made my page "wait" for 12 seconds to load; So please also check stackoverflow.com/a/359656...
How can I detect if a file is binary (non-text) in python?
...))
Example:
>>> is_binary_string(open('/usr/bin/python', 'rb').read(1024))
True
>>> is_binary_string(open('/usr/bin/dh_python3', 'rb').read(1024))
False
share
|
improve this an...
Override back button to act like home button
... be for an Activity to finish normally and be able to recreate itself e.g. reading the current state from a Service if needed. But moveTaskToBack can be used as a quick alternative on occasion.
NOTE: as pointed out by Dave below Android 2.0 introduced a new onBackPressed method, and these recommend...
How to delete the top 1000 rows from a table using Sql Server 2008?
...e wondering why you can't do DELETE TOP (1000) FROM table ORDER BY column, read this: "The rows referenced in the TOP expression used with INSERT, UPDATE, MERGE, or DELETE are not arranged in any order."
– Nick Chammas
Jan 21 '12 at 21:06
...
What exactly does stringstream do?
...stream, so it is not a burden to learn.
Stringstreams can be used to both read strings and write data into strings. It mainly functions with a string buffer, but without a real I/O channel.
The basic member functions of stringstream class are
str(), which returns the contents of its buffer in s...
Deleting a file in VBA
...the Kill command but you need to allow for the possibility of a file being read-only. Here's a function for you:
Sub DeleteFile(ByVal FileToDelete As String)
If FileExists(FileToDelete) Then 'See above
' First remove readonly attribute, if set
SetAttr FileToDelete, vbNorma...
How to find if a native DLL file is compiled as x64 or x86?
...stem.IO.FileStream(filepath, System.IO.FileMode.Open, System.IO.FileAccess.Read))
using (var reader = new System.IO.BinaryReader(stream)) {
//check the MZ signature to ensure it's a valid Portable Executable image
if (reader.ReadUInt16() != 23117)
throw new BadImageF...