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npm安装报错:rollbackFailedOptional verb npm-session - 更多技术 - 清泛...

npm安装报错:rollbackFailedOptional verb npm-sessionrollbackFailedOptional-verb-npm-session使用npm install安装组件时报错:rollbackFailedOptional: verb npm-session xxxx原因:组件目标地址无法访问导致,切换npm内网源或国内源即可解决。npm config set regist ...
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reactjs中防止字符转义,字符串不转义 - 更多技术 - 清泛网移动 - 专注C++内核技术

reactjs中防止字符转义,字符串不转义reactjs-dangerouslySetInnerHTML使用标签的dangerouslySetInnerHTML 属性即可,注意:必须是这种写法:<span dangerouslySetInnerHTML={{__html: & 39;<font color="red">ERROR< font>& 39;}}>(此处必须为空! 使用标签的 dangerously...
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【解决】This is allowed only when policy CMP0079 is set to NEW. - C/C+...

...et to NEW.This-is-allowed-only-when-policy-CMP0079-is-set-to-NEWcmake最低本设置为3 13以上,可解决。cmake_minimum_required(VERSION 3 13) can fix the first problem 参考:https: gitlab kitware com cmake cmake - issues 19693cmake最低本设置为3.13以上,可解决。 cmake_m...
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[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1....

...redExecutionEnvironment: J2SE-1.5eclipse-Missing-Constraint原因:eclipse本太老了,java本太新了不匹配导致。解决:安装最新的eclipse,地址:https: www eclipse org downloads 参考:https: www eclipse org forums index php t 1089568 原因:eclipse本太老了...
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[解决]Missing Constraint: Bundle-RequiredExecutionEnvironment: J2SE-1....

...redExecutionEnvironment: J2SE-1.5eclipse-Missing-Constraint原因:eclipse本太老了,java本太新了不匹配导致。解决:安装最新的eclipse,地址:https: www eclipse org downloads 参考:https: www eclipse org forums index php t 1089568 原因:eclipse本太老了...
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char类型移动跨平台踩过的坑 - C/C++ - 清泛网移动 - 专注C++内核技术

char类型移动跨平台踩过的坑CFLAG-fsigned-charchar强转int时,发现在x86平台下是按照有符号处理的,但是在ARM32下被当成了无符号导致问题,ARM64正常有符号。经调查,在PC上,char类型默认为signed-char,但是在一些嵌入式设备 char强转...
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Reference to \' \' is ambiguous:符号定义重复 - C/C++ - 清泛网移动 - 专注C++内核技术

Reference to ' ' is ambiguous:符号定义重复Reference-to-is-ambiguousReference to & 39; & 39; is ambiguous 编译错误:从字面上看就是引用某个符号(变量、类名、函数等)的定义不明确,重复。以下为可能的原因及解决方法:1、自定义的变量名 ...
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MFC Telnet Application(mfc telnet 端口,代码实现、不调用telnet.exe) ...

MFC Telnet Application(mfc telnet 端口,代码实现、不调用telnet.exe)MFC-Telnet-Applicationmfc程序telnet ip:端口,代码原生实现、不调用telnet.exe。程序源码工程升级后,可能出现编译不过的情况,请将stdafx.h中0x0410全部改为0x0501即可。The artic...
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ATL CComPtr和CComQIPtr详解 - C/C++ - 清泛网移动 - 专注C++内核技术

ATL CComPtr和CComQIPtr详解ATL-CComPtr-CComQIPtrCComPtr和CComQIPtr的不同的地方:CComPtr只能创建固定的特定的接口指针实例。而CComQIPtr不但实现了CComPtr的所有的功能,而且当我们把一个不同类型的接口指针赋值给CComQIPtr的时候,CComQIPtr会自...
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浮点数在内存中的表示 - C/C++ - 清泛网移动 - 专注C++内核技术

浮点数在内存中的表示Float_Memory_Representation一般我们常见的字符型、整型在内存中采用标准的二进制存储,但是程序员往往容易忽略浮点数在内存中的储存方式,从而会导致一些误用,最常见的是浮点数等于零的判断。只有理解...