大约有 40,000 项符合查询结果(耗时:0.0551秒) [XML]

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How to repeat a string a variable number of times in C++?

I want to insert 'n' spaces (or any string) at the beginning of a string in C++. Is there any direct way to do this using either std::strings or char* strings? ...
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How do I use shell variables in an awk script?

... awk '{print a,b,$0}' a="$var1" b="$var2" file In this way we can also set different Field Separator FS for each file. awk 'some code' FS=',' file1.txt FS=';' file2.ext Variable after the code block will not work for the BEGIN block: echo "input data" | awk 'BEGIN {print var}' var="${varia...
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How do I use boolean variables in Perl?

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How do I check if an integer is even or odd? [closed]

How can I check if a given number is even or odd in C? 31 Answers 31 ...
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Add line break within tooltips

...e: <i data-html="true" class="tooltip ficon-help-icon" twipsy-content-set="true" data-original-title= "<b>Hello</b> Stackoverflow" </i> It has worked in majority of the tooltip plugins i have tried as of now. ...
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Dynamically adding a form to a Django formset with Ajax

I want to automatically add new forms to a Django formset using Ajax, so that when the user clicks an "add" button it runs JavaScript that adds a new form (which is part of the formset) to the page. ...
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QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded

...rror in Safari Private Browser Mode on both iOS and OS X when localStorage.setItem (or sessionStorage.setItem) is called. One solution is to do a try/catch or Modernizr check in each instance of using setItem. However if you want a shim that simply globally stops this error being thrown, to preven...
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Double vs single quotes

I'm really new to Ruby and I'm trying to understand if there's a specific time when I should use "" vs '' . 8 Answers ...
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How to get the nth element of a python list or a default if not available

I'm looking for an equivalent in python of dictionary.get(key, default) for lists. Is there any one liner idiom to get the nth element of a list or a default value if not available? ...
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How to run a single RSpec test?

I have the following file: 17 Answers 17 ...