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What is a JavaBean exactly?
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A JavaBean is just a standard
All properties private (use getters/setters)
A public no-argument constructor
Implements Serializable.
That's it. It's just a convention. Lots of libraries depend on it though.
With respect to Serializable, from the API d...
Why does C# forbid generic attribute types?
...pful information either, although it does provide an example of what's not allowed.
My copy of the annotated C# 3 spec should arrive tomorrow... I'll see if that gives any more information. Anyway, it's definitely a language decision rather than a runtime one.
EDIT: Answer from Eric Lippert (parap...
String formatting in Python 3
...format(goals=2, penalties=4)
"({goals} goals, ${penalties})".format(**self.__dict__)
"first goal: {0.goal_list[0]}".format(self)
"second goal: {.goal_list[1]}".format(self)
"conversion rate: {:.2f}".format(self.goals / self.shots) # '0.20'
"conversion rate: {:.2%}".format(self.goals / self.shots) ...
Declare a block method parameter without using a typedef
...ssue benefits from multiple):
@implementation CallbackAsyncClass {
void (^_loginCallback) (NSDictionary *response);
}
// …
- (void)loginWithCallback:(void (^) (NSDictionary *response))handler {
// Do something async / call URL
_loginCallback = Block_copy(handler);
// response will c...
warning C4996 - C/C++ - 清泛网 - 专注C/C++及内核技术
warning C4996warning C4996: '_vsnprintf': This function or variable may be unsafe. ......warning C4996: strcpy was declar...warning C4996: '_vsnprintf': This function or variable may be unsafe. ......
warning C4996: strcpy was declared deprecated
出现这样的警告，是因为VC2005之后的版...
nsis安装之前备份程序，便于回滚 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...策略(暂定：仅备份最近一次)
RMDir /r "$INSTDIR\..\${SHORTCUT_NAME}_bak"
CopyFiles "$INSTDIR\*" "$INSTDIR\..\${SHORTCUT_NAME}_bak"
Delete "$INSTDIR\..\${SHORTCUT_NAME}_bak\uninst.exe"
;备份结束
SetOutPath "$INSTDIR"
SetOverwrite on
; first pic
EBanner::sho...
Win7以上操作系统清理系统图标缓存脚本 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_32.db"
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_96.db"
del /f "%userprofile%\AppData\Local\Microsoft\Windows\Explorer\thumbcache_102.db"
del /f "%userprofile%\AppData\Local\Microsoft\Windo...
mfc110d.dll!ATL::CSimpleStringT::~CSimpleStringT() 行 291 - 更多技术 -...
mfc110d.dll!ATL::CSimpleStringT::~CSimpleStringT() 行 291> msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 C++ msvcr110d.dll!_free_dbg_nolock(void * pUserDa...> msvcr110d.dll!_CrtIsValidHeapPointer(const void * pUserData) 行 2036 C++
msvcr110d.dll!_free_dbg_nolock(void * p...
_access头文件 - c++1y / stl - 清泛IT社区，为创新赋能！
#include <io.h>
Is it possible to use JavaScript to change the meta-tags of the page?
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@bobince: Actually, the SKYPE_TOOLBAR one still takes effect if you insert it with js (which is useful as html5 validator doesn't like that meta tag).
– DaedalusFall
Nov 15 '11 at 13:23
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