$.get('http://ip.taobao.com/service/getIpInfo.php?ip=','json',function(res){
	p=JSON.parse(res);
	p=p.data;
	for(var key in p){
            console.log(key + " -> " + p[key]);
	}
})

Rose Frantzen, a relatively young artist, has got a very unususal style as a comtemporary impressionist. However, she lead an arduous life during the days at school. She attended art school, but was told by one of her instructions that she wasn’t good at illustration and should go into advertising instead. She had to take both advertising and fine art classes until she was convinced that her work is good enough so that she could be an artist. Another thing is that she had to paint others’ portraits at somewhere like art fairs just to make monery to buy paint for her more serious work. No matter how hard it was, she never stopped pursuing of impressionism art. Eventually she is doing extremely well.
Most of us would have been discouraged if we had to face challenges and difficulties like that. The key point is that you keep at it and never give up.

Expercts from TPO 1 Listening Part 1 Section 2

https://askubuntu.com/questions/218377/install-remove-language-show-only-english-no-other-choice

http://www.linuxdiyf.com/linux/20344.html

https://askubuntu.com/questions/455682/14-04-chinese-ibus-input-no-options

sudo apt-get –reinstall install language-selector-gnome

sudo apt-get install ibus ibus-clutter ibus-gtk ibus-gtk3 ibus-qt4

ibus restart

im-config -s ibus

sudo ibus-setup

Compile manually with mingw

Set environment variables $CPATH$ and LIBRARY_PATH to locate glut.h and glut32.lib.
If they are not set, use option -I'[include_path]' and -L'[library_path]'.

g++ [source_file] -o [target_file] -lfreeglut -lopengl32 -Wl,–subsystem,windows

Build with Sublime Text

Create a new build system.

{
“cmd”: [“g++”, “${file}”, “-o”,”${file_path}/${file_base_name}”,”-lfreeglut”,”-lopengl32”,”-lglu32”,”-Wl,–subsystem,windows”],
“working_dir”: “${file_path}”,
“variants”:
[
{
“name”: “Run”,
“cmd”: [“cmd”,”/C”,”${file_path}/${file_base_name}.exe &pause”]
}
]
}

Build with CMake

Help about configurations
CMakeLists

## OpenGL
FIND_PACKAGE(OpenGL REQUIRED)
INCLUDE_DIRECTORIES(${OPENGL_INCLUDE_DIR})
## OpenGL
FIND_PACKAGE(GLUT REQUIRED)
INCLUDE_DIRECTORIES(${GLUT_INCLUDE_DIR})

TARGET_LINK_LIBRARIES([project_name] ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES})

Error when starting GLUT app when compiled for 64 bit

The application was unable to start correctly (0xc000007b). Click OK to close the application.

Make sure to link with the correct (64-bit) version of the library, and there is the correct (64-bit) dll available on the path.

常见的错误：

No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Origin ‘http://xxx.com‘ is therefore not allowed access.

禁止跨域请求是浏览器的安全机制的一部分，不能随便绕开。

即便采用axios，本质上仍是XMLHttpRequest，会遇到同样的问题。

在不能触及被请求端的后端的前提下，需要使用代理来启用Access-Control-Allow-Origin。

现在有了一种便捷手段：https://bird.ioliu.cn/

https://segmentfault.com/q/1010000007665348

Note that the recent release is no longer a preview version.

When trying out the Visual Studio Mac downloader from Microsoft, you will find it with “network error” and not pushing forward anymore.

However, disconnect the network and it will give in, providing with offline downloading links.

It was not possible to complete an automatic installation. This might be due to a problem with your network, proxy servers or an unsolvable installation conflict. At this point, you can continue the installation by manually downloading and installing the independent pieces. The list below shows each component that you need to install.

Mono Framework

Download the Mono Framework v5.0.0 archive to any directory on your disk, double-click it and follow the instructions on screen. Please accept all the defaults during the installation, including the target drive.

Android SDK

Download the Android SDK for Mac OS X version 24.4.1, open the downloaded archive and copy the contents of the folder found at its root directory (most probably named android-sdk-macosx) to the /Users/semprathlon/Library/Developer/Xamarin/android-sdk-macosx directory.

Click here in order to start the Android SDK Manager application. In the GUI make sure the following components are installed or selected for installation:

• Android SDK Tools
• Android SDK Platform-tools
• Android SDK Build-tools
• Android API 15
• Android API 19
• Android API 21

Once all the required components are selected (you can select others as well, if you wish) start the installation.
If you cannot see /Users/semprathlon/Library/Developer/Xamarin/android-sdk-macosx in Finder please click here to reveal the directory in Finder.

Download the Android NDK for Mac OS X version r10e, open the downloaded archive and copy the contents of its root directory (most probably named android-ndk-r10e) to the /Users/semprathlon/Library/Developer/Xamarin/android-ndk directory.

When the Android SDK installation is finished you might want to start the Android Emulator Manager and create as many emulator images as you might need for your development. This step can be performed at any time, on an as-needed basis.

Visual Studio

Download the Visual Studio v7.0.0 archive to any directory on your disk, double-click it and then drag and drop the Visual Studio icon to the Applications folder.

Xamarin.Android

Download the Xamarin.Android v7.3.0 archive to any directory on your disk, double-click it and follow the instructions on screen. Please accept all the defaults during the installation, including the target drive.

Xamarin.iOS

Download the Xamarin.iOS v10.10.0 archive to any directory on your disk, double-click it and follow the instructions on screen. Please accept all the defaults during the installation, including the target drive.

Xamarin.Mac

Download the Xamarin.Mac v3.4.0 archive to any directory on your disk, double-click it and follow the instructions on screen. Please accept all the defaults during the installation, including the target drive.

只需从/var/opt/gitlab/nginx/conf/nginx.conf中提取关键配置，插入到系统nginx.conf之中。

将/etc/gitlab/gitlab.rb中的nginx['enable']禁用，unicorn['enable']启用。

sudo gitlab-ctl reconfigure

• 放弃本地所有未提交的更改

https://www.v2ex.com/t/66718

git fetch [origin branch-name]
git reset –hard [origin/branch-name]
git clean -df

• sync forked reposities

https://segmentfault.com/q/1010000002590371

git remote -v

git remote add upstream URL

git fetch upstream
git merge upstream/master

• revoke commit

https://segmentfault.com/q/1010000000115900

git reset –hard HEAD~1
git push –force

• Some port may be blocked by the firewall, thus cannot be visit.

iptables -L -n

Check /etc/sysconfig/iptables and edit the rules, then restart the iptable service to make it work.

service iptables restart

• tomcat default port

See /usr/local/apache-tomcat/conf/server.xml

• nginx default port

ps aux | grep nginx

/usr/local/nginx/conf/nginx.conf

listen 8080 default_server;
listen [::]:8080 default_server ipv6only=on;

error adding listener addr=/var/opt/gitlab/gitlab-rails/sockets/gitlab.socket

chown git gitlab.socket

adding listener failed addr=127.0.0.1:8080 (in use)

gitlab-ctl tail unicorn

• firewalld

systemctl unmask firewalld

systemctl start firewalld

systemctl status firewalld

sudo firewall-cmd –permanent –add-service=http

• nginx configure compatible with gitlab

# gitlab socket 文件地址
upstream gitlab {
  server unix://var/opt/gitlab/gitlab-rails/sockets/gitlab.socket;
}

server {
  listen *:8080;

  server_name gitlab.semprathlon.net;   # 

  server_tokens off;     # don't show the version number, a security best practice
  root /opt/gitlab/embedded/service/gitlab-rails/public;

  # Increase this if you want to upload large attachments
  # Or if you want to accept large git objects over http
  client_max_body_size 250m;

  # individual nginx logs for this gitlab vhost
  access_log  /var/log/gitlab/nginx/gitlab_access.log;
  error_log   /var/log/gitlab/nginx/gitlab_error.log;

  location / {
    # serve static files from defined root folder;.
    # @gitlab is a named location for the upstream fallback, see below
    try_files $uri $uri/index.html $uri.html @gitlab;
  }

  # if a file, which is not found in the root folder is requested,
  # then the proxy pass the request to the upsteam (gitlab unicorn)
  location @gitlab {
    # If you use https make sure you disable gzip compression 
    # to be safe against BREACH attack

    proxy_read_timeout 300; # Some requests take more than 30 seconds.
    proxy_connect_timeout 300; # Some requests take more than 30 seconds.
    proxy_redirect     off;

    proxy_set_header   X-Forwarded-Proto $scheme;
    proxy_set_header   Host              $http_host;
    proxy_set_header   X-Real-IP         $remote_addr;
    proxy_set_header   X-Forwarded-For   $proxy_add_x_forwarded_for;
    proxy_set_header   X-Frame-Options   SAMEORIGIN;

    proxy_pass http://gitlab;
  }

  # Enable gzip compression as per rails guide: http://guides.rubyonrails.org/asset_pipeline.html#gzip-compression
  # WARNING: If you are using relative urls do remove the block below
  # See config/application.rb under "Relative url support" for the list of
  # other files that need to be changed for relative url support
  location ~ ^/(assets)/  {
    root /opt/gitlab/embedded/service/gitlab-rails/public;
    # gzip_static on; # to serve pre-gzipped version
    expires max;
    add_header Cache-Control public;
  }

  error_page 502 /502.html;
}

• gitlab 502 error debug

gitlab-ctl tail

gitlab.socket permission denied

sudo usermod -aG gitlab-www git

http://www.doocr.com/articles/58b1599ee21ae505cb93a717

chgrp -R gitlab-www /var/opt/gitlab/gitlab-rails

chown -R www /var/opt/gitlab/gitlab-rails

• ./configure, cannot find htmlcxx. Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-stand …

https://askubuntu.com/questions/210210/pkg-config-path-environment-variable

export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

• error while loading shared libraries: libhtmlcxx.so.3: cannot open shared object file: No such file

http://stackoverflow.com/questions/480764/linux-error-while-loading-shared-libraries-cannot-open-shared-object-file-no-s

sudo ldconfig