大约有 40,000 项符合查询结果（耗时：0.0528秒） [XML]
How to split a string into an array of characters in Python?
I've tried to look around the web for answers to splitting a string into an array of characters but I can't seem to find a simple method
...
Does the JVM prevent tail call optimizations?
...
This post: Recursion or Iteration? might help.
In short, tail call optimization is hard to do in the JVM because of the security model and the need to always have a stack trace available. These requirements could in theory be supported, but it would probably require a new bytecode (see J...
How do I pipe a subprocess call to a text file?
... write the output to a file you can use the stdout-argument of subprocess.call.
It takes None, subprocess.PIPE, a file object or a file descriptor. The first is the default, stdout is inherited from the parent (your script). The second allows you to pipe from one command/process to another. The thi...
@synthesize vs @dynamic, what are the differences?
...
here is example of @dynamic
#import <Foundation/Foundation.h>
@interface Book : NSObject
{
NSMutableDictionary *data;
}
@property (retain) NSString *title;
@property (retain) NSString *author;
@end
@implementation Book
@dyn...
Rollback to an old Git commit in a public repo
...hould be good.
You can undo this by
git reset --hard
that will delete all modifications from the working directory and staging area.
share
|
improve this answer
|
follow...
How to use putExtra() and getExtra() for string data
...an someone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity.
...
Quick and easy file dialog in Python?
... is not open source code and even more - it is commercial library.
(For example search for "activetcl pricing" will lead you to this web page: https://reviews.financesonline.com/p/activetcl/)
So tkinter library will cost money for any application wanting to embedd python.
I by myself managed to f...
Measuring text height to be drawn on Canvas ( Android )
... approximate height. I've also been messing around with FontMetrics , but all these seem like approximate methods that suck.
...
Is embedding background image data into CSS as Base64 good or bad practice?
...om/util/base64-decoder-encoder.asp (upload)
http://www.greywyvern.com/code/php/binary2base64 (from link with little tutorials underneath)
share
|
improve this answer
|
follo...
Convert Pandas column containing NaNs to dtype `int`
...
@jsc123 you can use the object dtype. This comes with a small health warning but for the most part works well.
– Andy Hayden
May 19 '15 at 15:16
1
...