大约有 47,000 项符合查询结果(耗时:0.0805秒) [XML]

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Hide separator line on one UITableViewCell

I'm customizing a UITableView . I want to hide the line separating on the last cell ... can i do this? 37 Answers ...
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How do I cast a string to integer and have 0 in case of error in the cast with PostgreSQL?

In PostgreSQL I have a table with a varchar column. The data is supposed to be integers and I need it in integer type in a query. Some values are empty strings. The following: ...
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How do I include negative decimal numbers in this regular expression?

How do I match negative numbers as well by this regular expression? This regex works fine with positive values, but I want it to also allow negative values e.g. -10, -125.5 etc. ...
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Using bitwise OR 0 to floor a number

A colleague of mine stumbled upon a method to floor float numbers using a bitwise or: 6 Answers ...
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Seeding the random number generator in Javascript

Is it possible to seed the random number generator (Math.random) in Javascript? 13 Answers ...
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How can I remove a flag in C?

There is a variable that holds some flags and I want to remove one of them. But I don't know how to remove it. 3 Answers ...
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How can I declare and define multiple variables in one line using C++?

I always though that if I declare these three variables that they will all have the value 0 10 Answers ...
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Ruby, remove last N characters from a string?

What is the preferred way of removing the last n characters from a string? 13 Answers ...
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Can dplyr package be used for conditional mutating?

Can the mutate be used when the mutation is conditional (depending on the values of certain column values)? 5 Answers ...
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How to extract numbers from a string and get an array of ints?

I have a String variable (basically an English sentence with an unspecified number of numbers) and I'd like to extract all the numbers into an array of integers. I was wondering whether there was a quick solution with regular expressions? ...