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inserting characters at the start and end of a string
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Strings are immutable so you can't insert characters into an existing string. You have to create a new string. You can use string concatenation to do what you want:
yourstring = "L" + yourstring + "LL"
Note that you can also create a string with n Ls ...
Convert list to tuple in Python
...uple, list or other special names as a variable name. It's probably what's causing your problem.
>>> l = [4,5,6]
>>> tuple(l)
(4, 5, 6)
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Create a variable name with “paste” in R?
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You can use assign (doc) to change the value of perf.a1:
> assign(paste("perf.a", "1", sep=""),5)
> perf.a1
[1] 5
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Initialize a long in Java
... add L: long i = 12345678910L;.
Yes.
BTW: it doesn't have to be an upper case L, but lower case is confused with 1 many times :).
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How do I change the formatting of numbers on an axis with ggplot?
I'm using R and ggplot to draw a scatterplot of some data, all is fine except that the numbers on the y-axis are coming out with computer style exponent formatting, i.e. 4e+05, 5e+05, etc. This is obviously unacceptable, so I want to get it to display them as 500,000, 400,000, and so on. Getting a p...
What does $1 [QSA,L] mean in my .htaccess file?
...ace to give a complete tutorial, but here it is in short;
RewriteCond basically means "execute the next RewriteRule only if this is true". The !-l path is the condition that the request is not for a link (! means not, -l means link)
The RewriteRule basically means that if the request is done that ...
[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
...义分别是ANSI、Unicode、“一般”类型和OLE字符串。例如，CA2CT就是将ANSI转换成一般类型的字符串常量。下面是一些示例代码：
LPTSTR tstr= CA2TEX<16>("this is a test");
LPCTSTR tcstr= CA2CT("this is a test");
wchar_t wszStr[] = L"This is a test";
char* ...
Iterating over each line of ls -l output
...pt I'm writing that accepts arguments. The $1 is throwing things off. What can I put there instead of $1 to get the same effect? I'd like to use the second solution.
– noob-in-need
Apr 14 '16 at 15:33
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Split string using a newline delimiter with Python
...g,h,i', 'j,k,l']
Or as @Ashwini Chaudhary suggested in the comments, you can use
print(data.splitlines())
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Where are environment variables stored in registry?
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User Variables
HKEY_CURRENT_USER\Environment
System Variables
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Environment
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