error

解决方法： 输入以下命令 yum -y install gcc gcc-c++ autoconf automake make 来源： https://www.cnblogs.com/sayshap/p/11832910.html

问题描述：ERROR1130：Host '192.168.1.3' is not allowed to connect to this MySQL Server.你没有权限连接指定IP的主机。 解决方法： 授权法。例如，你想myuser使用password从任何主机连接到mysql服务器。 GRANT ALL PRIVILEGES ON *.* TO ‘myuser’@'%’ IDENTIFIED BY ‘mypassword’ WITH GRANT OPTION; 如果你想允许用户myuser从ip为192.168.1.3的主机连接到mysql服务器，并使用mypassword作为密码。 GRANT ALL PRIVILEGES ON *.* TO ‘root’@’192.168.1.3′ IDENTIFIED BY ‘mypassword’ WITH GRANT OPTION; 改表法。可能是你的帐号不允许从远程登陆，只能在localhost。这个时候只要在localhost的那台电脑，登入mysql后，更改 “mysql” 数据库里的 “user” 表里的 “host” 项，从”localhost”改称”%”。 shell>mysql --user=root -p mysql>use mysql mysql>GRANT SELECT,INSERT,UPDATE,DELETE

来源： https://www.cnblogs.com/gigi2653/p/11796401.html

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: I have the following code : #include<stdio.h> #include<conio.h> #include<math.h> #include<graphics.h> void main() { int gd=DETECT,gm; int dx,dy,p,end; float x1,x2,y1,y2,x,y; initgraph(&gd,&gm,""); printf("\nEnter the value of x1: "); scanf("%f",&x1); printf("\nEnter the value of y1: "); scanf("%f",&y1); printf("\nEnter the value of x2: "); scanf("%f",&x2); printf("\nEnter the value of y2: "); scanf("%f",&y2); dx=abs(x1-x2); dy=abs(y2-y1); p=2*dy-dx; if(x1>x2) { x=x2; y=y2; end=x1; } else { x=x1; y=y1; end=x2; } putpixel(x,y,10); while(x<end)

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: I have this code: http://pastebin.com/Sd9WKZFr When i call something like rate(60, -6000, 120000) it returns me a NAN result, but the same function on MS Excel returns me 0,04678... . I have the same problem trying -5000, -4000, -3000 and -2000. When i debug the code, i see that about the 8/9 iteration, the line number 29 begins to return a NAN result, making all of other results to turn NAN too. BUT, when i call something like rate(60, -1000, 120000) it returns me a float -0.02044... , exactly the same result of MS Excel. I have already

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: I'm not sure what I am seeing here. The test results below are from an old PowerMac G5 running OS X 10.5.8. Its still around for testing under the big-endian PowerPC cpu. The compiler is GCC 5.4, and its provided by MacPorts. The test program is below. Compiling it results in an error error: 'log2' is not a member of 'std' . $ cat test.cxx #include <cmath> int main(int argc, char* argv[]) { double d = std::log2(2.3456789f); return 0; } According to Is std::log2() an extension or C++ standard? , std::log2 should be available. Why is the

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: While i try to install Pillow 2.5.3 I am getting an error : command 'x86_64-linux-gnu-gcc' failed with exit status 1 Here is the complete log of what happened I need this library as a part of another python project. I have gone through many solutions but none helped me 回答1: You are missing Python headers. Install python-dev from your distribution's package manager. Equally for python 3. Install python3-dev , example: sudo apt-get install python3-dev 回答2: I have tried python-dev package but not worked for me. Then i have tried below code work

引子 使用VS编译C++程序经常会遇到这种情况：编译已经成功，没有报错；但是链接时报错，类似于：“error LNK2001！@#￥#￥@%#……@#￥%&*&￥%￥@#￥”。网上查到的相关文章和我实际遇到不太一样，在这里总结一下我所遇到的链接错误的解决方式。注：这里不明确指明error LNK的错误代码。 一、没有正确的配置XXX.lib windows编译用到其他的dll库如XXX.dll，不但需要 .h的头文件，而且需要相应的 XXX.lib文件。之前查过说是这个XXX.lib文件是指明了函数的入口地址神马的，但为啥linux下就不需要呢？ 回到问题本身，没有正确配置XXX.lib文件有以下几种可能： a）没有在链接的附加依赖项中写入正确的XXX.lib（或者使用#param 在程序中设定）； b）搜索库文件的路径上XXX.lib不存在（库文件路径没有设置正确）； c）XXX.lib文件有多个版本，而库文件路径上那个版本与你头文件的版本不一致； 二、C++类的函数在头文件中声明了，但是在cpp文件中没有对应的定义。 这种错误比较容易发现。错误中会出现函数名。 三、VS的配置不正确 这个是刚发现，并且昨天折磨了我半个下午。 我们工程的一个solution中包含多个project，而且project之间有依赖关系——某些的project会用到一些基础project生成的lib。

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: I have being trying to install OpenCV on Ubuntu 16.04 unsing several tutorials and i always end up with an error. This is the last one i've got following this tutorial: https://github.com/BVLC/caffe/wiki/Ubuntu-16.04-or-15.10-OpenCV-3.1-Installation-Guide What can i do? [ 48%] Linking CXX executable ../../bin/opencv_test_viz //usr/lib/x86_64-linux-gnu/libvtkIOImage-6.2.so.6.2: undefined reference to `TIFFReadDirectory@LIBTIFF_4.0' //usr/lib/x86_64-linux-gnu/libvtkIOImage-6.2.so.6.2: undefined reference to `TIFFIsTiled@LIBTIFF_4.0' //usr/lib

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: I'm trying to write a file with the users authentication data to the disk. To achieve this I wrote the following function: function writeAuthFile(data, success, fail) { var fs = require('fs'); fs.writeFile('auth.json', JSON.stringify(data), function(error) { if(error) { console.log('[write auth]: ' + err); if (fail) fail(error); } else { console.log('[write auth]: success'); if (success) success(); } }); } But it never calls the callback. I looked at the nodeJS docs for fs and it all seems to check out. Also all other asynchronous execution