大约有 48,000 项符合查询结果(耗时:0.0377秒) [XML]

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How can I know which parts in the code are never used?

..., it's much more difficult. Statically it requires whole program analysis, and even though link time optimization may actually remove dead code, in practice the program has been so much transformed at the time it is performed that it is near impossible to convey meaningful information to the user. ...
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Better way to check if a Path is a File or a Directory?

I am processing a TreeView of directories and files. A user can select either a file or a directory and then do something with it. This requires me to have a method which performs different actions based on the user's selection. ...
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How to identify server IP address in PHP

... Like this for the server ip: $_SERVER['SERVER_ADDR']; and this for the port $_SERVER['SERVER_PORT']; share | improve this answer | follow ...
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How to declare a variable in MySQL?

... refer to a variable that has not been initialized, it has a value of NULL and a type of string. SELECT @var_any_var_name You can initialize a variable using SET or SELECT statement: SET @start = 1, @finish = 10; or SELECT @start := 1, @finish := 10; SELECT * FROM places WHERE place BET...
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Detect encoding and make everything UTF-8

I'm reading out lots of texts from various RSS feeds and inserting them into my database. 24 Answers ...
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Getting random numbers in Java [duplicate]

I would like to get a random value between 1 to 50 in Java. 2 Answers 2 ...
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Database development mistakes made by application developers [closed]

...using it anyway. More here: How important are constraints like NOT NULL and FOREIGN KEY if I’ll always control my database input with php? Are foreign keys really necessary in a database design? Are foreign keys really necessary in a database design? 3. Using natural rather than surrogate (te...
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What are the differences between Perl, Python, AWK and sed? [closed]

just want to know what are the main differences among them? and the power of each language (where it's better to use it). 5...
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Gulps gulp.watch not triggered for new or deleted files?

...w. It did not when the question was asked. The rest of my answer still stands: gulp-watch is usually a better solution because it lets you perform specific actions only on the files that have been modified, while gulp.watch only lets you run complete tasks. For a project of a reasonable size, thi...
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MySQL connection not working: 2002 No such file or directory

I'm trying to set up WordPress. I have Apache and MySQL running, and the accounts and database are all set up. I tried to make a simple connection: ...