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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...代表的含意与\d就是完全一致的：一位数字；同理[a-z0-9A-Z_]也完全等同于\w（如果只考虑英文的话）。
下面是一个更复杂的表达式：\(?0\d{2}[) -]?\d{8}。
“(”和“)”也是元字符，后面的分组节里会提到，所以在这里需要使用转义...
Android Fragment no view found for ID?
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@howettl: I know it is bit old post. But I am not able fix this issue with your answer. Here is SO question: stackoverflow.com/questions/25844394/… - Can you help me with this please? Thanks!
– TheDevMan
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What does the “static” modifier after “import” mean?
...f
your code (including you, a few months
after you wrote it) will not know
which class a static member comes
from. Importing all of the static
members from a class can be
particularly harmful to readability;
if you need only one or two members,
import them individually. Used
approp...
Change application's starting activity
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For anyone that doesn't know what the manifest this post is talking about, it is the AndroidManifest.xml in the root of your project. In Eclipse you can double click it and click the tab on the furthest right to edit the XML directly.
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How to grant remote access to MySQL for a whole subnet?
... apply to: user_name@'192.168.1.my-hacked-rnds.killing.mysql.com'???? i'll now walk on, since this being MySQL I sense I don't want to know the answer.
– Florian Heigl
Apr 24 '15 at 19:24
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Can git be integrated with Xcode?
.... You bring up DTerm in a floating window with a key combination. DTerm knows the full path to the current document in the editor.
For Example to run a diff on the file you are editing you:
1) Press Ctrl-Return to bring up the DTerm window. (This key combo is configurable).
2) type 'git diff c...
How to remove spaces from a string using JavaScript?
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Interestingly, the split-join method is now the fastest for me on Firefox 73, followed by regexp1a at 53% slower.
– hackel
Jan 28 at 5:03
ad...
To ternary or not to ternary? [closed]
...erseOrder)) {
return -1;
else
return 0;
}
Now compare that with this:
int compareTo(Object object) {
if(isLessThan(object))
return reverseOrder ? 1 : -1;
else(isGreaterThan(object))
return reverseOrder ? -1 : 1;
else
...
String was not recognized as a valid DateTime “ format dd/MM/yyyy”
...ttern for the United States (en-US) but it does match for France (fr-FR).
Now, you can either call DateTime.ParseExact and pass in the exact format string that you're expecting, or you can pass in an appropriate culture to DateTime.Parse to parse the date.
For example, this will parse your date co...
Modern way to filter STL container?
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@gsimard Better now?
– L. F.
Apr 6 at 3:05
1
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