大约有 10,900 项符合查询结果（耗时：0.0398秒） [XML]
In Python, how do I create a string of n characters in one line of code?
... "xxxxxxxxxx"
And if you want something more complex, like n random lowercase letters, it's still only one line of code (not counting the import statements and defining n):
from random import choice
from string import ascii_lowercase
n = 10
string_val = "".join(choice(ascii_lowercase) for i in r...
How to print full stack trace in exception?
...the full exception information (including the inner stack trace) in text:
catch (MyCustomException ex)
{
Debug.WriteLine(ex.ToString());
}
Sample output:
ConsoleApplication1.MyCustomException: some message .... ---> System.Exception: Oh noes!
at ConsoleApplication1.SomeObject.OtherMeth...
How to select a node using XPath if sibling node has a specific value?
...
Not sure why everybody is querying for siblings, you can also check for <bb/>-elements matching the predicate from <a/>'s predicate:
//a[bb/text() = "zz"]/cc/text()
share
|
...
How does “make” app know default target to build if no target is specified?
...he default goal; to do that, it may have to process other targets - specifically, ones the first target depends on.
The GNU Make Manual covers all this stuff, and is a surprisingly easy and informative read.
share
...
How can I make gdb save the command history?
How can I set up gdb so that it saves the command history? When starting a new gdb session I'd like to use the arrow up keys to access the commands of the previous sessions.
...
Show filename and line number in grep output
...need of searching recursively and used this example command: grep -Hnor "localhost" . This listet up all matches with file name and line number, short and concise.
– Tore Aurstad
Sep 10 '18 at 8:25
...
How to optimize imports automatically after each save in IntelliJ IDEA
I want to learn how can I automatically optimize imports after each save as we do Eclipse( save actions ).
4 Answers
...
Difference between C++03 throw() specifier C++11 noexcept
...
Exception specifiers were deprecated because exception specifiers are generally a terrible idea. noexcept was added because it's the one reasonably useful use of an exception specifier: knowing when a function won't throw an exception. Thus it becomes a bi...
invalid target release: 1.7
...
On a Mac, where jdk6 and jdk7 are installed, this can be forced in ~/.profile: export JAVA_HOME=$(/usr/libexec/java_home -v 1.7)
– Hank
Feb 10 '14 at 20:31
...
Count the occurrences of DISTINCT values
...FIRST row returned, and a count of number of rows in the table, so in this case [Mark, 7]. count(), as an aggregate function works on the entire dataset, suming, counting, or concating the specified field down to one row. Group by subdivides the dataset into chunks based on unique combos of the spe...