大约有 47,000 项符合查询结果（耗时：0.0708秒） [XML]
How to save a data.frame in R?
...a Epskamp
40.5k1616 gold badges100100 silver badges128128 bronze badges
2
...
MySQL Fire Trigger for both Insert and Update
...
128
You have to create two triggers, but you can move the common code into a procedure and have the...
Create a tar.xz in one command
...
246
Use the -J compression option for xz. And remember to man tar :)
tar cfJ <archive.tar.xz&g...
Matplotlib Legends not working
...
You should add commas:
plot1, = plt.plot(a,b)
plot2, = plt.plot(a,c)
The reason you need the commas is because plt.plot() returns a tuple of line objects, no matter how many are actually created from the command. Without the comma, "plot1" and "plot2" are tuples instead of...
Python TypeError: not enough arguments for format string
...version of Python supports it, you should write:
instr = "'{0}', '{1}', '{2}', '{3}', '{4}', '{5}', '{6}'".format(softname, procversion, int(percent), exe, description, company, procurl)
This also fixes the error that you happened to have.
...
How are booleans formatted in Strings in Python?
...
249
>>> print "%r, %r" % (True, False)
True, False
This is not specific to boolean valu...
jQuery exclude elements with certain class in selector
...
266
You can use the .not() method:
$(".content_box a").not(".button")
Alternatively, you can al...
Is there a better way to write this null check, and a non-empty check, in groovy?
...
212
There is indeed a Groovier Way.
if(members){
//Some work
}
does everything if members i...
Scala: join an iterable of strings
...
432
How about mkString ?
theStrings.mkString(",")
A variant exists in which you can specify a pre...