大约有 40,000 项符合查询结果(耗时:0.0334秒) [XML]

https://stackoverflow.com/ques... 

float64 with pandas to_csv

...nts, it is a general floating point problem. However you can use the float_format key word of to_csv to hide it: df.to_csv('pandasfile.csv', float_format='%.3f') or, if you don't want 0.0001 to be rounded to zero: df.to_csv('pandasfile.csv', float_format='%g') will give you: Bob,0.085 Alice,...
https://stackoverflow.com/ques... 

How to add spacing between UITableViewCell

...l the border will be smaller. How can I fix it? – Bad_Developer Mar 24 '17 at 11:09 1 Hey, Husam....
https://stackoverflow.com/ques... 

Getting JavaScript object key list

... answered Jun 18 '10 at 9:32 zed_0xffzed_0xff 28.2k77 gold badges4747 silver badges7070 bronze badges ...
https://stackoverflow.com/ques... 

How to send an email with Gmail as provider using Python?

... line and use CRLF as EOL markers. E.g. msg = "\r\n".join([ "From: user_me@gmail.com", "To: user_you@gmail.com", "Subject: Just a message", "", "Why, oh why" ]) share | improve this a...
https://stackoverflow.com/ques... 

What does #defining WIN32_LEAN_AND_MEAN exclude exactly?

I found the explanation defining WIN32_LEAN_AND_MEAN "reduces the size of the Win32 header files by excluding some of the less frequently used APIs". Somewhere else I read that it speeds up the build process. ...
https://stackoverflow.com/ques... 

Sending images using Http Post

... MultipartEntity entity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE); for(int index=0; index < nameValuePairs.size(); index++) { if(nameValuePairs.get(index).getName().equalsIgnoreCase("image")) { // If the key equals to "image", we use File...
https://stackoverflow.com/ques... 

str performance in python

...; import dis >>> dis.dis(lambda: str(100000)) 8 0 LOAD_GLOBAL 0 (str) 3 LOAD_CONST 1 (100000) 6 CALL_FUNCTION 1 9 RETURN_VALUE >>> dis.dis(lambda: '%s' % 100000) 9 0 LOAD...
https://stackoverflow.com/ques... 

When should you use constexpr capability in C++11?

...lues over and over? int func (int n) { static std::map<int, int> _cached; if (_cached.find (n) == _cached.end ()) _cached[n] = n > 0 ? n + func (n-1) : n; return _cached[n]; } The result By introducing your silly optimization, you just broke every usage of your function th...
https://stackoverflow.com/ques... 

Guaranteed lifetime of temporary in C++?

... a "full-expression" in this case: printf("%s", strdup(std::string("$$$").c_str()) ); ?I mean if strdup(std::string("$$$").c_str()) is taken as the full expression, then the pointer that strdup sees is valid. If std::string("$$$").c_str() is a full expression, then the pointer that strdup sees is in...
https://stackoverflow.com/ques... 

Writing handler for UIAlertAction

... {alert in println("Foo")}, {_ in println("Foo")}, and {println("Foo")} should also work. – Brian Nickel♦ Jun 12 '14 at 17:44 7 ...