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Arrow operator (->) usage in C
...g a book called "Teach m>Y m>ourself C in 21 Dam>y m>s" (I have alreadm>y m> learned Java m>and m> C# so I am moving at a much faster pace). I was reading the chapter on pointers m>and m> the -> (arrow) operator came up without explanation. I think that it is used to call members m>and m> functions (like the equivalent of...
Filter rows which contain a certain string
...mail in the comments above. m>Y m>ou can use regular expressions for the second m>and m> subsequent arguments of filter like this:
dplm>y m>r::filter(df, !grepl("RTB",TrackingPixel))
Since m>y m>ou have not provided the original data, I will add a tom>y m> example using the mtcars data set. Imagine m>y m>ou are onlm>y m> intereste...
How to print an exception in Pm>y m>thon?
...
For Pm>y m>thon 2.6 m>and m> later m>and m> Pm>y m>thon 3.x:
except Exception as e: print(e)
For Pm>y m>thon 2.5 m>and m> earlier, use:
except Exception,e: print str(e)
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INT 10H 中断介绍 - C/C++ - 清泛网 - 专注C/C++及内核技术
...模式下，字符的位置类似数学直角坐标系的坐标，但是 m>Y m> 轴方向相反，m>Y m> 轴是以屏幕最上面为零，越下面越大，直到 24 为止，存于 DH 内。X 轴和直角坐标系相同，越右边越大，存于 DL 内，其最大值视显示模式而变。
AH=03H
AH=03H/...
What does asterisk * mean in Pm>y m>thon? [duplicate]
...narm>y m>.
Also, see Function Calls.
Assuming that one knows what positional m>and m> kem>y m>word arguments are, here are some examples:
Example 1:
# Excess kem>y m>word argument (pm>y m>thon 2) example:
def foo(a, b, c, **args):
print "a = %s" % (a,)
print "b = %s" % (b,)
print "c = %s" % (c,)
print a...
How can I output a UTF-8 CSV in PHP that Excel will read properlm>y m>?
...s got to be UTF-8. I open this file in TextEdit or TextMate or Dreamweaver m>and m> it displam>y m>s UTF-8 characters properlm>y m>, but if I open it in Excel it's doing this sillm>y m> íÄ kind of thing instead. Here's what I've got at the head of mm>y m> document:
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Numpm>y m>: find first index of value fast
... not interested in the following answers because them>y m> scan the whole arram>y m> m>and m> don't stop when them>y m> find the first occurrence:
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How to insert newline in string literal?
...line" + Environment.NewLine + "second line";
String interpolation (in C#6 m>and m> above):
string x = $"first line{Environment.NewLine}second line";
m>Y m>ou could also use \n everm>y m>where, m>and m> replace:
string x = "first line\nsecond line\nthird line".Replace("\n",
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Ignore mapping one propertm>y m> with Automapper
I'm using Automapper m>and m> I have the following scenario:
Class OrderModel has a propertm>y m> called 'ProductName' that isn't in the database.
So when I trm>y m> to do the mapping with:
...
Whm>y m> do people still use primitive tm>y m>pes in Java?
...ing of primitive tm>y m>pes so that int is wrapped to be java.lang.Integer , m>and m> so m>and m> m>and m> so forth.
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