Is there a standard sign function (signum, sgn) in
-
萌妹纸的霸气范
发布于
- 收藏
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Iwantafunctionthatreturns-1fornegativenumbersand+1forpositivenumbers. http://en.wikipedia.org/wiki/Sign_function It\'seasyenoughtowritemyown,buti...
Python — return, return None, and no return at all
-
萌妹纸的霸气范
发布于
- 收藏
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Considerthreefunctions: defmy_func1(): print\HelloWorld\ returnNone defmy_func2(): print\HelloWorld\ return defmy_func3(): print\HelloWorld\ ...
Practical non-image based CAPTCHA approaches?
-
萌妹纸的霸气范
发布于
- 收藏
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: Itlookslikewe\'llbeaddingCAPTCHAsupporttoStackOverflow.Thisisnecessarytopreventbots,spammers,andothermaliciousscriptedactivity.Weonlywanthumanbei...
Difference between self.ivar and ivar?
-
萌妹纸的霸气范
发布于
- 收藏
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: aclass.h @interfaceaClass:NSObject{ NSString*name; } @property(nonatomic,retain)IBOutletNSString*name; @end aclass.m @implementationaClas...
Difference between “or” and || in Ruby?
-
萌妹纸的霸气范
发布于
- 收藏
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试):问题: What\'sthedifferencebetweentheorand||operatorsinRuby?Orisitjustpreference? 回答1: It\'samatterofoperatorprecedence. ||hasahigherprecedencethanor....