大约有 47,000 项符合查询结果（耗时：0.0587秒） [XML]
When exactly are onSaveInstanceState() and onRestoreInstanceState() called?
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107
Per the documentation:
void onRestoreInstanceState (Bundle savedInstanceState)
This m...
Example for sync.WaitGroup correct?
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154
Yes, this example is correct. It is important that the wg.Add() happens before the go statemen...
How do I output the difference between two specific revisions in Subversion?
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172
See svn diff in the manual:
svn diff -r 8979:11390 http://svn.collab.net/repos/svn/trunk/fSup...
How to write multiple line string using Bash with variables?
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kernel="2.6.39"
distro="xyz"
cat >/etc/myconfig.conf <<EOL
line 1, ${kernel}
line 2,
line 3, ${distro}
line 4 line
...
EOL
cat /etc/myconfig.conf
This construction is referred to as a Here Document and can be found in the Bash man pages under man --pager='less -p "\s*Here Documents"'...
How does the following LINQ statement work?
...ant the output to be 2,4,6, use .ToList():
var list = new List<int>{1,2,4,5,6};
var even = list.Where(m => m%2 == 0).ToList();
list.Add(8);
foreach (var i in even)
{
Console.WriteLine(i);
}
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Differences between Line and Branch coverage
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168
Line coverage measures how many statements you took (a statement is usually a line of code, no...
Ruby regular expression using variable name
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184
The code you think doesn't work, does:
var = "Value"
str = "a test Value"
p str.gsub( /#{var}...
Get parts of a NSURL in objective-c
...t:
@"%@://%@/%@",
url.scheme,
url.host,
url.pathComponents[1]];
For your example URL, what you seem to want is the protocol, the host and the first path component. (The element at index 0 in the array returned by -[NSString pathComponents] is simply "/", so you'll want the element ...
Java - Including variables within strings?
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128
You can always use String.format(....). i.e.,
String string = String.format("A String %s %2d...
Android: When is onCreateOptionsMenu called during Activity lifecycle?
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113
The onCreate method is called first, and before it finishes onCreateOptionsMenu is called.
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