大约有 40,000 项符合查询结果(耗时:0.0621秒) [XML]
How to get the first column of a pandas DataFrame as a Series?
...c wasn't there yet back then. In 2016, the correct answer is Jeff's (after all he's pandas God, mind you ;-)). I'm not sure what's SO's policy regarding update of answers due to API change; I'm honestly surprised by the number of votes for this answer, didn't think it was that useful to people...
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How to generate an entity-relationship (ER) diagram using Oracle SQL Developer
... is exported. To export in a vector format, use To PDF File, instead. This allows for simplified editing using Inkscape (or other vector image editor).
These instructions may work for SQL Developer 3.2.09.23 to 4.1.3.20.
sh...
How to Remove ReadOnly Attribute on File Using PowerShell?
...e here? As for Keith's answer, he's using PSCX. Not everyone has those installed and that's not really a case of PowerShell v1 vs. v2.
– Joey
Apr 22 '11 at 9:28
add a comment
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iPhone: Detecting user inactivity/idle time since last screen touch
... touch or an Ended touch, to reduce the number of timer resets.
NSSet *allTouches = [event allTouches];
if ([allTouches count] > 0) {
// allTouches count only ever seems to be 1, so anyObject works here.
UITouchPhase phase = ((UITouch *)[allTouches anyObject]).phase;
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Argparse: Required arguments listed under “optional arguments”?
...
Parameters starting with - or -- are usually considered optional. All other parameters are positional parameters and as such required by design (like positional function arguments). It is possible to require optional arguments, but this is a bit against their desig...
How to run only one local test class on Gradle
...eSpecificFeature
gradle test --tests *SomeSpecificTest
gradle test --tests all.in.specific.package*
gradle test --tests *IntegTest
gradle test --tests *IntegTest*ui*
gradle test --tests *IntegTest.singleMethod
gradle someTestTask --tests *UiTest someOtherTestTask --tests *WebTest*ui
From version 1...
Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du
...ruct, they'll be the attacker's own versions of those objects, with potentially-unexpected behaviour.
For example, you can hack a setter-property into Object, that would betray the values written in object literals:
Object.prototype.__defineSetter__('x', function(x) {
alert('Ha! I steal '+x);
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Vertical (rotated) label in Android
...d simple vertical text implementation, extending TextView. This means that all standard styles of TextView may be used, because it is extended TextView.
public class VerticalTextView extends TextView{
final boolean topDown;
public VerticalTextView(Context context, AttributeSet attrs){
...
Difference between fprintf, printf and sprintf?
...on>
#include <stdarg.h>
#include <stdio.h>
struct exception_fmt : std::exception
{
exception_fmt(char const* fmt, ...) __attribute__ ((format(printf,2,3)));
char const* what() const throw() { return msg_; }
char msg_[0x800];
};
exception_fmt::exception_fmt(char const* fm...
What is the maximum float in Python?
I think the maximum integer in python is available by calling sys.maxint .
3 Answers
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