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热爱平淡，向往未知

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sudo apt-get install cargo
cargo install --no-default-features exa

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yield: generator里面的yield相当于一个断点？ 下次代码执行的时候从这个断点开始执行

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def fib(n):
    prev, curr = 0, 1
    while n > 0:
        n -= 1
        yield curr
        prev, curr = curr, curr + prev

print([i for i in fib(10)])
#[1, 1, 2, 3, 5, 8, 13, 21, 34, 55]
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>>> g = (x*2 for x in range(10))
>>> type(g)
<type 'generator'>
>>> l = [x*2 for x in range(10)]
>>> type(l)
<type 'list'>

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for k,v in pairs(data) do
print(k)
end
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do return end

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https://help.github.com/categories/managing-remotes/

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for branch in `git branch -a | sed -n '\=/HEAD$=d; \=/master$=d;s= remotes/==p'`; do 
git branch --track ${branch##*/} $branch 
done