如何在Julia中生成随机的字母数字字符串? [英] How to generate random alphanumeric string in julia?

问题描述

我正在尝试使用以下代码段在julia中生成12个字符的字母数字字符串:
a)
an = randstring(rand(Bool) ? ('A':'Z') : ('0':'9'), 12)
b)

I am trying to generate 12 characters alphanumeric string in julia with the following snippets:
a)
an = randstring(rand(Bool) ? ('A':'Z') : ('0':'9'), 12)
b)

an = "" 
for i in [1:12]
    an *= randstring(rand(Bool) ? ('A':'Z') : ('0':'9'))
end

但是两者都给出完整的12位数字或12个字母，但不给出它们的组合.

but both gives either complete 12 digits or 12 alphabets but not of their combination.

请指导我生成12个字母数字字符串的组合.

please guide me in generating combination of 12 alphanumeric string.

推荐答案

如果您不介意同时使用大写和小写字母，则可以简单地调用randstring(12):

If you don't mind using both upper and lower case letters, you can simply call randstring(12):

julia> using Random

julia> randstring(12)
"0IPrGg0JVONT"

julia> randstring(12)
"EB5dhw4LVno7"

如果只需要大写字母和数字，则需要传递randstring仅包含大写字母和数字的集合，您可以使用['A':'Z'; '0':'9']来实现:

If you want only uppercase letters (and numbers), then you need to pass randstring a collection that includes only uppercase letters and numbers, which you can achieve with ['A':'Z'; '0':'9']:

julia> randstring(['A':'Z'; '0':'9'], 12)
"ASZQAT5YX3OL"

julia> randstring(['A':'Z'; '0':'9'], 12)
"FEV5HTGMLQ6X"

最后，请注意，您可以将字符集合作为字符串提供:

Finally, note that you could provide the collection of characters as a string:

julia> randstring("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", 12)
"ASZQAT5YX3OL"

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