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socket网络编程中read与recv区别 - C/C++ - 清泛网 - 专注C/C++及内核技术

...read与recv区别1、read 与 recv 区别read 原则:数据在不超过指定长度时候有多少读多少,没有数据则会一直等待。所以一般情况下:我们读取数据都...1、read 与 recv 区别 read 原则: 数据在不超过指定长度时候有多少读多...
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Generate GUID in MySQL for existing Data?

...RE UPDATE on YourTable FOR EACH ROW BEGIN SET new.guid_column := (SELECT UUID()); END // Then execute UPDATE YourTable set guid_column = (SELECT UUID()); And DROP TRIGGER beforeYourTableUpdate; UPDATE Another solution that doesn't use triggers, but requires primary key or unique index : UP...
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9 句话看懂 Photoshop CC 2017 新功能 - IT产品资讯 - 清泛网 - 专注C/C++及内核技术

... What's New随便列一些吧: In-app search :综合性应用内搜索,除了不太常用功能可以用关键词搜索调起之外还能直接搜 Adobe Stock 图库里照片,所以你可以理解为他们主要是为了再多加个入口卖照片。 Tighter integration with Ado...
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Generate a UUID on iOS from Swift

In my iOS Swift app I want to generate random UUID ( GUID ) strings for use as a table key, and this snippet appears to work: ...
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VIP会员中心 · App Inventor 2 中文网,少儿编程陪伴者

...otal:£89.99 View cart Checkout 边栏搜索 请输入搜索内容 搜索 边栏菜...
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PHP function to generate v4 UUID

...nd I've been trying to piece together a function that generates a valid v4 UUID in PHP. This is the closest I've been able to come. My knowledge in hex, decimal, binary, PHP's bitwise operators and the like is nearly non existant. This function generates a valid v4 UUID up until one area. A v4 UUID ...
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WSAAsyncSelect模型 - C/C++ - 清泛网 - 专注C/C++及内核技术

...CKET s, //需要设置套接字句柄 HWND hWnd, //指定一个窗口句柄, 套接字通知消息将被发到此窗口中 u_int wMsg, //网络事件到来ID,可以在WM_USER以上数值中任意指定一个值 long IEvent //指定哪些通...
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TCP 那些事儿(下) - 更多技术 - 清泛网 - 专注C/C++及内核技术

...且BIC-TCP提出者们看穿了事情本质,其实这就是一个搜索过程,所以BIC这个算法主要用是Binary Search——二分查找来干这个事。 关于这个算法实现,你可以参看Linux源码:/net/ipv4/tcp_bic.c TCP WestWood算法 westwood采用和Reno相...
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移动端弱网络测试问题总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...控件操作,在数据返回前没有做兼容处理。 场景:搜索时输入关键字会连续发请求,停下时,显示最终关键字搜索结果,但很快又会被前面关键字搜索结果覆盖了; 原因:中间请求返回较慢,显示了最终结果后...
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app inventor什么时候需要用到字典块【高频搜索】 - App Inventor 2 中文网...

列表能完成字典绝大部分功能,不过字典具有比列表更好查找性能,因此如果要对数据结构执行大量操作,建议优先使用字典。 更多用法请查看文档:https://www.fun123.cn/reference/blocks/dictionaries.html