大约有 3,370 项符合查询结果(耗时:0.0242秒) [XML]

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What is the proper way to test if a parameter is empty in a batch file?

...safe. And the setting of param1 will work in many cases, like test.bat hello"this is"a"test test.bat you^&me But it still fails with strange contents like test.bat ^&"& To be able to get a 100% correct answer for the existence It detects if %1 is empty, but for some content it ...
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How to get the caller's method name in the called method?

... Hello, I am getting below error when i run this: File "/usr/lib/python2.7/inspect.py", line 528, in findsource if not sourcefile and file[0] + file[-1] != '<>': IndexError: string index out of range ...
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How to create a file in memory for user to download, but not through server?

...t" value="Download"> </form> Usage download('test.txt', 'Hello world!'); share | improve this answer | follow | ...
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argparse module How to add option without any argument?

... Hello;Thanks for your answer. I have tried as explained in the doc: >>> parser.add_argument('--foo', '-f', action='store_true') _StoreTrueAction(option_strings=['--foo', '-f'], dest='foo', nargs=0, const=True, de...
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How to get certain commit from GitHub project

... Hello suraj can you please tell me how did you created the gif of your screen? – Rahul Satal Dec 6 '15 at 18:49 ...
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How to filter None's out of List[Option]?

...you can use flatten: scala> someList.flatten res0: List[String] = List(Hello, Goodbye) share | improve this answer | follow | ...
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Node.js throws “btoa is not defined” error

... convert to Base64 you could do so using Buffer: console.log(Buffer.from('Hello World!').toString('base64')); Reverse (assuming the content you're decoding is a utf8 string): console.log(Buffer.from(b64Encoded, 'base64').toString()); Note: prior to Node v4, use new Buffer rather than Buffer....
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CSS3 gradient background set on body doesn't stretch but instead repeats?

...lorstr='#ffffff', endColorstr='#cbccc8'); } <body> <h1>Hello world!</h1> </body> I've tested this in FireFox 3.6, Safari 4, and Chrome, I keep the background-color in the body for any browsers that for some reason don't support styling the HTML tag. ...
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How can I distribute python programs?

... Not recommended for small applications, since a simple Hello world program would take 500MB space and 3-5 seconds initialisation time. – Raf Mar 20 '19 at 11:10 ...
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AngularJS. How to call controller function from outside of controller component

...message from the outside of the controller.'; }) alert(scope.returnHello()); } function testController($scope) { $scope.msg = "Hello from a controller method."; $scope.returnHello = function() { return $scope.msg ; } } ...