大约有 47,000 项符合查询结果(耗时:0.0526秒) [XML]
Switch case with fallthrough?
...
heemayl
30.4k33 gold badges4242 silver badges5353 bronze badges
answered Apr 6 '11 at 6:28
geekosaurgeekosaur
...
How to get the last element of a slice?
...
307
For just reading the last element of a slice:
sl[len(sl)-1]
For removing it:
sl = sl[:len(s...
Selecting a row in DataGridView programmatically
...
130
Not tested, but I think you can do the following:
dataGrid.Rows[index].Selected = true;
or yo...
Looping over a list in Python
...
200
Try this,
x in mylist is better and more readable than x in mylist[:] and your len(x) should b...
How can I format a decimal to always show 2 decimal places?
...
108
I suppose you're probably using the Decimal() objects from the decimal module? (If you need exa...
Format / Suppress Scientific Notation from Python Pandas Aggregation Results
...float_format', lambda x: '%.3f' % x)
In [28]: Series(np.random.randn(3))*1000000000
Out[28]:
0 -757322420.605
1 -1436160588.997
2 -1235116117.064
dtype: float64
I'm not sure if that's the preferred way to do this, but it works.
Converting numbers to strings purely for aesthetic purposes ...
How can I use a file in a command and redirect output to the same file without truncating it?
...can use a temporary file though.
#!/bin/sh
tmpfile=$(mktemp)
grep -v 'seg[0-9]\{1,\}\.[0-9]\{1\}' file_name > ${tmpfile}
cat ${tmpfile} > file_name
rm -f ${tmpfile}
like that, consider using mktemp to create the tmpfile but note that it's not POSIX.
...
Function to return only alpha-numeric characters from string?
...restricted to just A-Z.
Try this to remove everything except a-z, A-Z and 0-9:
$result = preg_replace("/[^a-zA-Z0-9]+/", "", $s);
If your definition of alphanumeric includes letters in foreign languages and obsolete scripts then you will need to use the Unicode character classes.
Try this to le...
Easy way to list node modules I have npm linked?
...|
edited Jul 24 '14 at 15:06
answered Jul 24 '14 at 14:13
m...
Remove characters from NSString?
...
280
You could use:
NSString *stringWithoutSpaces = [myString
stringByReplacingOccurrencesOfStri...
