大约有 15,640 项符合查询结果（耗时：0.0324秒） [XML]
How to get a Color from hexadecimal Color String
...ang.NumberFormatException: Invalid int: "FFFF0000"
– error1337
Jun 20 '17 at 11:30
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Set selected index of an Android RadioGroup
...oup>
In this case using an index of 1, for example, would generate an error. The item at index 1 is the first separator line -- not a radioButton. The radioButtons in this example are at indexes 0, 2, 4, 6.
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OAuth: how to test with local URLs?
... OAuth buttons, but they all (Facebook, Twitter, LinkedIn) come back with errors that seem to signal that I can not test or use them from a local URL.
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Asynchronous shell exec in PHP
...t, using /dev/null is the better practice, as writing to closed FDs causes errors, whereas attempts to read or write to /dev/null simply silently do nothing.
– Charles Duffy
Oct 22 '13 at 14:49
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How to get the nth element of a python list or a default if not available
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try:
a = b[n]
except IndexError:
a = default
Edit: I removed the check for TypeError - probably better to let the caller handle this.
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im...
How to write to file in Ruby?
...ile = File.open("/tmp/some_file", "w")
file.write("your text")
rescue IOError => e
#some error occur, dir not writable etc.
ensure
file.close unless file.nil?
end
You can find it in documentation:
static VALUE rb_io_s_open(int argc, VALUE *argv, VALUE klass)
{
VALUE io = rb_class_ne...
Best way to alphanumeric check in JavaScript
...character ranges manually:
if (!input_string.match(/^[0-9a-z]+$/))
show_error_or_something()
Here ^ means beginning of string and $ means end of string, and [0-9a-z]+ means one or more of character from 0 to 9 OR from a to z.
More information on Javascript regexen here:
https://developer.mozil...
Openssl is not recognized as an internal or external command
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Getting error " Both context and applicationId must be non-null", when used above code. @SagarChavada
– Yesha Shah
Nov 3 '18 at 7:11
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How can a Java variable be different from itself?
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Or lead into a compile error, if a is declared as String a = "Nope"; That why I asked for the type of 'a'
– Christian Kuetbach
Dec 4 '13 at 12:16
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Batch file to copy files from one folder to another folder
...rce d:\target, put "" around the c:\source and d:\target,otherwise you get error.
ie if there are spaces in the path ie if you have:
"C:\Some Folder\*.txt"
but not required if you have:
C:\SomeFolder\*.txt
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