大约有 45,000 项符合查询结果(耗时:0.0525秒) [XML]

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How do I vertically center text with CSS? [duplicate]

...: 2px dashed #f69c55; } <div> Hello World! </div> It only works for a single line of text though, because we set the line's height to the same height as the containing box element. A more versatile approach This is another way to align text vertically. This solution will...
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Difference between object and class in Scala

...object O creates a singleton object O as instance of some anonymous class; it can be used to hold static members that are not associated with instances of some class. object O extends T makes the object O an instance of trait T; you can then pass O anywhere, a T is expected. if there is a class C, t...
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Cache busting via params

...doing so. My thought was to apply a param to the end of css and js files with the current version number: 12 Answers ...
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Read String line by line

Given a string that isn't too long, what is the best way to read it line by line? 11 Answers ...
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How to simulate Android killing my process

Android will kill a process if it is in the background and the OS decides it needs the resources (RAM, CPU, etc.). I need to be able to simulate this behaviour during testing so that I can ensure that my application is behaving correctly. I want to be able to do this in an automated way so that I ca...
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Check if element exists in jQuery [duplicate]

... me. You need to put # before element id: $('#elemId').length ---^ With vanilla JavaScript, you don't need the hash (#) e.g. document.getElementById('id_here') , however when using jQuery, you do need to put hash to target elements based on id just like CSS. ...
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Django 1.7 throws django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet

... This is what solved it for us and these folks: Our project started with Django 1.4, we went to 1.5 and then to 1.7. Our wsgi.py looked like this: import os from django.core.handlers.wsgi import WSGIHandler os.environ['DJANGO_SETTINGS_MODULE'...
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Unknown file type MIME?

...The "octet-stream" subtype is used to indicate that a body contains arbitrary binary data. share | improve this answer | follow | ...
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Using backticks around field names

...ich has a policy which bans them, I'm wondering if there's anything wrong with using backticks around field names in MySQL. ...
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jQuery AJAX cross domain

...NP <-- P (lowercase) success:function(json){ // do stuff with json (in this case an array) alert("Success"); }, error:function(){ alert("Error"); } }); PHP: <?php $arr = array("element1","element2",array("element31","element32")); $arr['n...