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PHP完美实现GIF动画缩略图 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...hell> convert old.gif -coalesce -thumbnail 50x50 -layers optimize new.gif 个细节问题:convert版本会比php版本小一些,这是API实现不一致所致。 另外,如果缩略图尺寸不符合原图比例,为了避免变形,还要考虑裁剪或者是补白,由于本文主要...
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C/C++头文件string与string.h的区别及Mac平台的特殊性 - C/C++ - 清泛网 - ...

...C语言里面关于字符数组的函数定义的头文件,常用函数strlen、strcmp、strcpy等。 string(C++头文件,定义stl的std::string) string是C++标准库(STL)中的类型,它定义了string类,包含了对字符串的各种常用操作。 因此,strlen() ...
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‘std::tr1’ does not name a template type - C/C++ - 清泛网 - 专注C/C++及内核技术

...己并非标准,他是一份草稿文件。然而他所提出的项目很可能成为下次的官方标准。这份文件的目标在于「为扩充的C++标准函式库建立更为广泛的现成实作品」。 C++ tr1是针对C++标准库的第一次扩展。即将到来的下一个版本...
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wandbox:C++在线编译项目源码编译及原理剖析 - 开源 & Github - 清泛网 - ...

...字会在官网首页展示,个人好像是合不到300RMB就可以了,兴趣可以深入了解一下。 源码编译步骤: 1、clone到本地后,首先必须执行 ./install_deps.sh 安装依赖包。 2、中间可能安装失败,再次执行他会重新开始,可以适量修...
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C++ Lock-free Hazard Pointer(冒险指针) - C/C++ - 清泛网 - 专注C/C++及内核技术

...hazard_pointer1 Safe Reclamation MethodsFolly 的 Hazard Pointer 实现中一段注释,详细描述了 C++ 里几种主流的安全内存回收方法,列表如下:优点缺点场景Locking易用读高开销 1. Safe Reclamation Methods Folly 的 Hazard Pointer 实现中一段注...
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家政O2O百家争鸣后的卡位战:烧钱补贴并非良药 - 资讯 - 清泛网移动版 - 专...

...近该行业的投融资情况可见一斑,仅在本月家政O2O平台就“小马管家”宣布获得了5000万人民币的A+轮融、好慷在线宣布已完成7000万人民币融资等。家政O2O市场自前年开始爆发以来,创业者与风投资金不断进入,在今年更是掀...
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Django 1.7 throws django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet

...1.4, not in 1.5, and not in 1.7. If you had it in there, it was added manually by someone - it is not added by django-admin startproject. – wim Oct 11 '16 at 16:54 ...
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passport.js passport.initialize() middleware not in use

.... I keep getting this exception after authentication success (I see the callback url on the browser): 7 Answers ...
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Node.js project naming conventions for files & folders

... your tests An example which uses this setup is nodejs-starter. I personally changed this setup to: / /etc - contains configuration /app - front-end javascript files /config - loads config /models - loads models /bin - helper scripts /lib - back-end express files /config - lo...
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Why won't my PHP app send a 404 error?

... Your code is technically correct. If you looked at the headers of that blank page, you'd see a 404 header, and other computers/programs would be able to correctly identify the response as file not found. Of course, your users are still SOL. N...