大约有 42,000 项符合查询结果(耗时:0.0409秒) [XML]

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Is it possible to change a UIButtons background color?

This one has me stumped. 16 Answers 16 ...
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How to send password securely over HTTP?

If on a login screen user submits a form with his username and password, the password is sent in plain text (even with POST, correct me if I am wrong). ...
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What are best practices for validating email addresses on iOS 2.0

What is the cleanest way to validate an email address that a user enters on iOS 2.0? 13 Answers ...
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Shortcuts in Objective-C to concatenate NSStrings

Are there any shortcuts to ( stringByAppendingString: ) string concatenation in Objective-C, or shortcuts for working with NSString in general? ...
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windows service vs scheduled task

What are the cons and pros of windows services vs scheduled tasks for running a program repeatedly (e.g. every two minutes)? ...
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Algorithm for classifying words for hangman difficulty levels as “Easy”,“Medium”, or “Hard”

What is a good algorithm to determine the "difficulty" of a word for a hangman game, so that the game can select words to match a specified difficulty level? ...
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Just what is Java EE really? [closed]

Java EE has this "mysterious shroud" around it for younger Java developers - one that I've been trying to lift myself for quite a while with little success. ...
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Pandas: create two new columns in a dataframe with values calculated from a pre-existing column

I am working with the pandas library and I want to add two new columns to a dataframe df with n columns (n > 0). These new columns result from the application of a function to one of the columns in the dataframe. ...
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Python __call__ special method practical example

I know that __call__ method in a class is triggered when the instance of a class is called. However, I have no idea when I can use this special method, because one can simply create a new method and perform the same operation done in __call__ method and instead of calling the instance, you can c...
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What should every developer know about databases? [closed]

Whether we like it or not, many if not most of us developers either regularly work with databases or may have to work with one someday. And considering the amount of misuse and abuse in the wild, and the volume of database-related questions that come up every day, it's fair to say that there are ce...