@kjreen

参考以下代码：
Let $\mathcal{A}$ and $\mathcal{B}$ be two sets and $f:
\mathcal{A} \mapsto \mathcal{B}$.

@abao00001 感谢，刚刚没注意到

运行之后总是出现 command not found 提示，不止可否帮忙看下

```
nspecting 47 casks. Use 'brew-cask.sh upgrade' to perform any updates.
./update_brew_cask: line 19: [[ 6.1 ==: command not found
./update_brew_cask: line 19: [[ 10.05 ==: command not found
./update_brew_cask: line 19: [[ 1.1 ==: command not found
./update_brew_cask: line 19: [[ 5.0.2 ==: command not found
./update_brew_cask: line 19: [[ 2.4.0 ==: command not found
./update_brew_cask: line 19: [[ 2.8.3_435 ==: command not found
./update_brew_cask: line 19: [[ 2.4 ==: command not found
./update_brew_cask: line 19: [[ 2.0.7 ==: command not found
./update_brew_cask: line 19: [[ 1.62 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 3.11.4 ==: command not found
./update_brew_cask: line 19: [[ 1.2.3 ==: command not found
./update_brew_cask: line 19: [[ 2016.1 ==: command not found
./update_brew_cask: line 19: [[ 2.1.1 ==: command not found
./update_brew_cask: line 19: [[ 3.2.3 ==: command not found
./update_brew_cask: line 19: [[ 2.8.9 ==: command not found
./update_brew_cask: line 19: [[ 1.5.2.4 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 1.6.0 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 36.6 ==: command not found
./update_brew_cask: line 19: [[ 4.2.13332 ==: command not found
./update_brew_cask: line 19: [[ 2.3 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 5.11 ==: command not found
./update_brew_cask: line 19: [[ 2.1.4 ==: command not found
./update_brew_cask: line 19: [[ 1.0.4 ==: command not found
./update_brew_cask: line 19: [[ 3.6.3 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 2.4.623 ==: command not found
./update_brew_cask: line 19: [[ 2.5 ==: command not found
./update_brew_cask: line 19: [[ 3.4.3,458 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 2016.1 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 2.7 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 1.7.26 ==: command not found
./update_brew_cask: line 19: [[ 514.0-1456193896 ==: command not found
./update_brew_cask: line 19: [[ 2.0-beta.9 ==: command not found
./update_brew_cask: line 19: [[ 2.3.4-305-ab500cf4 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 5.0.16-105871 ==: command not found
./update_brew_cask: line 19: [[ 3.5.1 ==: command not found
./update_brew_cask: line 19: [[ latest ==: command not found
./update_brew_cask: line 19: [[ 2015.12.14 ==: command not found
./update_brew_cask: line 19: [[ 2.7.8 ==: command not found

@abao00001
原本选择 brew cask 安装是想可以批量更新的 看来是不行了
不知道有什么办法可以实现不？

@abao00001

对 我也一直有这个疑惑
用 brew cask 安装的应用 再用 update && upgrade 去升级的时候重来没有提示过升级
只有每次打开应用手动点击更新检查的时候才会弹出升级提示

@kjreen 你愿意折腾的话 自己写 lisp 绑快捷键啊 yasnippet 天生不就是这么干的吗

@kjreen 总共就两个字符，强迫也不至于这样吧
有时间还不如多研究研究<>里面的公式

行内公式：$ <content> $
行间公式：$$ <content> $$

@quietjosen 正在下载

换 Thinkpad T 或 W

@BigPa 可以的， CM 家的特色就是自家服务器转发，免翻墙收 gmail
目前除了删除的邮件会反复出现，其他比较理想

@allan888 @sox
同觉得 CloudMagic 要比 Airmail 更好些

巨硬这几年在 iOS 上的重视和投入让人忍不住想鼓掌

已传送，请查收~

pdf: PDF Expert
epub/mobi: Clearview

不推荐 iBooks ，会修改源文件，导出给别的小伙伴的时候可能会出现问题

@quietjosen 对 H 最好加粗些 目前太细了
另外，第四点，可以程序直接操作，对已选取的行增加或者去除#就好了

下载适用了以下 不错 有几个小建议
1. 图标不是很好看，建议外面加个圈 然后弄成反相模式
2. 退出的按钮建议做在一级菜单上，减少用户操作的频次
3. Host 的显示如果能和 Gas Mask 一样增加高亮会更好些
4. Host 编辑模式希望增加列编辑模式，这样可以快速进行注释或者解注释操作，另外如果能增加注释与解注释快捷键就更好了

目前还在试用 后续有建议的话会再反馈给你