大约有 20,000 项符合查询结果（耗时：0.0418秒） [XML]
Using print statements only to debug
...g statements like:
debug('My value: %d' % value)
...then I pick up unit testing and never did this again! :)
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Check number of arguments passed to a Bash script
...
Just like any other simple command, [ ... ] or test requires spaces between its arguments.
if [ "$#" -ne 1 ]; then
echo "Illegal number of parameters"
fi
Or
if test "$#" -ne 1; then
echo "Illegal number of parameters"
fi
Suggestions
When in Bash, prefer using [[...
How does PHP 'foreach' actually work?
...lways unset the next element, rather than the current one.
Examples: Your test cases
The three aspects described above should provide you with a mostly complete impression of the idiosyncrasies of the foreach implementation and we can move on to discuss some examples.
The behavior of your test c...
How to execute a Ruby script in Terminal?
...call ruby your_program.rb, I get this: ruby: No such file or directory -- testapp.rb (LoadError)
– Tom Maxwell
Jan 4 '12 at 2:53
1
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How to validate an e-mail address in swift?
...
wouldn't return emailTest.evaluateWithObject(testStr) be a lot more simpler and readable? Comparing to == true is a bit like Javascript.
– Sulthan
Aug 24 '14 at 11:55
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How can I replace a regex substring match in Javascript?
...
var str = 'asd-0.testing';
var regex = /(asd-)\d(\.\w+)/;
str = str.replace(regex, "$11$2");
console.log(str);
Or if you're sure there won't be any other digits in the string:
var str = 'asd-0.testing';
var regex = /\d/;
str = str.replac...
Differences between Line and Branch coverage
...erage in the first case, so you can see there is something missing in your testing (and often, in your code).
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Viewing contents of a .jar file
...
javap example: javap -classpath test.jar com.yourpackage.HelloWorld
– mPrinC
Sep 22 '17 at 20:28
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Calling constructor from other constructor in same class
...params) at the end of the constructor to do 'constructor chaining'
public Test( bool a, int b, string c )
: this( a, b )
{
this.m_C = c;
}
public Test( bool a, int b, float d )
: this( a, b )
{
this.m_D = d;
}
private Test( bool a, int b )
{
this.m_A = a;
this.m_B = b;
}
S...
Reading a simple text file
...cess it.
AssetManager am = context.getAssets();
InputStream is = am.open("test.txt");
Or you can also put the file in the /res/raw directory, where the file will be indexed and is accessible by an id in the R file:
InputStream is = context.getResources().openRawResource(R.raw.test);
...