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docs: edit arithmetic#33

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docs: edit arithmetic#33
KeithTt wants to merge 1 commit intowangdoc:masterfrom
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@KeithTt
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@KeithTt KeithTt commented Jul 2, 2020

Add 'let' and 'bc'.

@ruanyf
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ruanyf commented Jul 2, 2020

let命令在《变量》一章介绍了。

## let 命令

bc命令,我觉得用处不大。要不要加在教程里面,我再想一想。

@ruanyf ruanyf closed this Jul 2, 2020
@KeithTt
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KeithTt commented Jul 2, 2020

抱歉,没注意。跟 ES6 不一样,let命令 在 bash 中应该是计算工具吧。

ruanyf added a commit that referenced this pull request Jul 4, 2020
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ruanyf commented Jul 4, 2020

let命令是给变量赋值,在算术这部分提了一下。

bc命令格式有点复杂,也不是很常用,超出了这本教程的范围,就不提了。

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3 participants