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What is the difference between re.search and re.match?
...
re.match is anchored at the beginning of the string. That has nothing to do with newlines, so it is not the same as using ^ in the pattern.
As the re.match documentation says:
If zero or more characters at the
beginning of string match the regular expression patt...
Dictionary returning a default value if the key does not exist [duplicate]
... trygetvalue doesn't allow you to specify a default value, ie for a string value you may want it to return "" instead of null
– katbyte
Aug 12 '13 at 20:08
1
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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ov eax, 80000002h
cpuid
call save_string
mov eax, 80000003h
cpuid
call save_string
mov eax, 80000004h
cpuid
call save_string
m...
Python add item to the tuple
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>>> x = (u'2',)
>>> x += u"random string"
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
x += u"random string"
TypeError: can only concatenate tuple (not "unicode") to tuple
>>> x += (u"random string", ...
Getting the class name from a static method in Java
...ard-code in knowledge of MyClass like that, then you might as well just do String name = "MyClass"; !
– John Topley
Jun 1 '09 at 20:45
111
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How to tell if JRE or JDK is installed
...an be inferred (most of the time)...
public static boolean isJDK() {
String path = System.getProperty("sun.boot.library.path");
if(path != null && path.contains("jdk")) {
return true;
}
return false;
}
However... on Linux this isn't as reliable... For example...
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How to convert a Drawable to a Bitmap?
...rawable.icon_resource);
Here a version where the image gets downloaded.
String name = c.getString(str_url);
URL url_value = new URL(name);
ImageView profile = (ImageView)v.findViewById(R.id.vdo_icon);
if (profile != null) {
Bitmap mIcon1 =
BitmapFactory.decodeStream(url_value.openConn...
Hidden Features of JavaScript? [closed]
...oersion, which is a different beast. If you know, that you want to cast to string/number/etc, then you shold do that explicitly.
– Rene Saarsoo
Jun 5 '09 at 18:39
15
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What is the difference between and ? [duplicate]
...amic or static please can you help me here thanks or it will be treated as string ${someVar}
– shareef
Dec 8 '14 at 13:32
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How can I generate random alphanumeric strings?
How can I generate a random 8 character alphanumeric string in C#?
33 Answers
33
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