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How to do a batch insert in MySQL
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304
From the MySQL manual
INSERT statements that use VALUES
syntax can insert multiple rows. ...
How to export plots from matplotlib with transparent background?
...e keyword argument transparent=True to save the image as a png file.
In [30]: x = np.linspace(0,6,31)
In [31]: y = np.exp(-0.5*x) * np.sin(x)
In [32]: plot(x, y, 'bo-')
Out[32]: [<matplotlib.lines.Line2D at 0x3f29750>]
In [33]: savefig('demo.png', transparent=True)
Result:
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Nohup is not writing log to output file
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104
It looks like you need to flush stdout periodically (e.g. sys.stdout.flush()). In my testing Py...
Is there a way of having git show lines added, lines changed and lines removed?
...'^\{\+.*\+\}$' \
REM_PATTERN='^\[-.*-\]$' \
git diff --word-diff --unified=0 | sed -nr \
-e "s/$MOD_PATTERN/modified/p" \
-e "s/$ADD_PATTERN/added/p" \
-e "s/$REM_PATTERN/removed/p" \
| sort | uniq -c
It's a little long-winded so you may want to parse it in your own script instead....
获取文件系统映像及恢复删除的数据（FAT文件系统格式描述） - C/C++ - 清泛...
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偏移量
字段描述
必须 的 ？
0-2
启动文件系统载入器 (loader)的 汇编代码 (即转到 loader 的起始位置 )
不
3-10
操作系统名称 ( ASCII 形式 )
不
11-12
磁盘扇...
How to toggle a boolean?
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JordanJordan
28k66 gold badges5050 silver badges6363 bronze badges
9
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Closing multiple issues in Github with a commit message
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answered Aug 23 '10 at 20:13
Jakob BorgJakob Borg
19.8k66 gold badges4444 silver badges4646 bronze badges
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Map and Reduce in .NET
...as it albeit under different names.
Map is Select:
Enumerable.Range(1, 10).Select(x => x + 2);
Reduce is Aggregate:
Enumerable.Range(1, 10).Aggregate(0, (acc, x) => acc + x);
Filter is Where:
Enumerable.Range(1, 10).Where(x => x % 2 == 0);
https://www.justinshield.com/2011/06/mapr...
How to replace a character with a newline in Emacs?
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answered Mar 4 '09 at 23:52
Jonathan ArkellJonathan Arkell
9,45522 gold badges2222 silver badges3232 bronze badges
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How to draw vertical lines on a given plot in matplotlib?
...tual height is plt.axvline
import matplotlib.pyplot as plt
plt.axvline(x=0.22058956)
plt.axvline(x=0.33088437)
plt.axvline(x=2.20589566)
OR
xcoords = [0.22058956, 0.33088437, 2.20589566]
for xc in xcoords:
plt.axvline(x=xc)
You can use many of the keywords available for other plot command...