大约有 42,000 项符合查询结果(耗时:0.0457秒) [XML]

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Static constant string (class member)

I'd like to have a private static constant for a class (in this case a shape-factory). 11 Answers ...
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Batch file: Find if substring is in string (not in a file)

In a batch file, I have a string abcdefg . I want to check if bcd is in the string. 10 Answers ...
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How to insert a text at the beginning of a file?

So far I've been able to find how to add a line at the beginning of a file but that's not exactly what I want. I'll show it on a example ...
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What is the “->” PHP operator called and how do you say it when reading code out loud? [closed]

What do you call this arrow looking -> operator found in PHP? 16 Answers 16 ...
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When and why I should use session_regenerate_id()?

Why and when should I use the session_regenerate_id() function in php? Should I always use it after I use the session_start() ? I've read that I have to use it to prevent session fixation, is this the only reason? ...
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Create a hexadecimal colour based on a string with JavaScript

I want to create a function that will accept any old string (will usually be a single word) and from that somehow generate a hexadecimal value between #000000 and #FFFFFF , so I can use it as a colour for a HTML element. ...
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Checking out Git tag leads to “detached HEAD state”

I'm developing a deployment script for my git project and I just started using tags. I've added a new tag called v2.0 : 2 ...
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“INSERT IGNORE” vs “INSERT … ON DUPLICATE KEY UPDATE”

While executing an INSERT statement with many rows, I want to skip duplicate entries that would otherwise cause failure. After some research, my options appear to be the use of either: ...
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Algorithm for Determining Tic Tac Toe Game Over

I've written a game of tic-tac-toe in Java, and my current method of determining the end of the game accounts for the following possible scenarios for the game being over: ...
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Is there a library function for Root mean square error (RMSE) in python?

I know I could implement a root mean squared error function like this: 12 Answers 12 ...