大约有 10,150 项符合查询结果(耗时:0.0247秒) [XML]

https://stackoverflow.com/ques... 

Play audio with Python

How can I play audio (it would be like a 1 second sound) from a Python script? 22 Answers ...
https://stackoverflow.com/ques... 

How do I extract the contents of an rpm?

I have an rpm and I want to treat it like a tarball. I want to extract the contents into a directory so I can inspect the contents. I am familiar with the querying commands of an uninstalled package. I do not simply want a list of the contents of the rpm. i.e. ...
https://stackoverflow.com/ques... 

How does BLAS get such extreme performance?

Out of curiosity I decided to benchmark my own matrix multiplication function versus the BLAS implementation... I was to say the least surprised at the result: ...
https://stackoverflow.com/ques... 

What is the MySQL JDBC driver connection string?

I am new to JDBC and I am trying to make a connection to a MySQL database. I am using Connector/J driver, but I cant find the JDBC connection string for my Class.forName() method. ...
https://stackoverflow.com/ques... 

Get Substring - everything before certain char

I'm trying to figure out the best way to get everything before the - character in a string. Some example strings are below. The length of the string before - varies and can be any length ...
https://stackoverflow.com/ques... 

Difference between toFixed() and toPrecision()?

I'm new to JavaScript and just discovered toFixed() and toPrecision() to round numbers. However, I can't figure out what the difference between the two is. ...
https://stackoverflow.com/ques... 

UIButton won't go to Aspect Fit in iPhone

I have a couple UIButtons, and in IB they're set to Aspect Fit, but for some reason they're always stretching. Is there something else you have to set? I tried all the different view modes and none of them work, they all stretch. ...
https://stackoverflow.com/ques... 

How to calculate the difference between two dates using PHP?

... 33 Answers 33 Active ...
https://stackoverflow.com/ques... 

How to format a float in javascript?

In JavaScript, when converting from a float to a string, how can I get just 2 digits after the decimal point? For example, 0.34 instead of 0.3445434. ...
https://stackoverflow.com/ques... 

How to concatenate columns in a Postgres SELECT?

I have two string columns a and b in a table foo . 8 Answers 8 ...