如何格式化和遍历包含数组的数组，并且每个数组包含一个数组? [英] How do format and traverse an array that contains arrays ,and each array contains an array?

问题描述

我正在尝试在数组中包含的数组中创建多维.

I'm trying to create multidimensional within arrays that are contained in an array.

tests=("'0' '1 2'" "'4' '5 6'")

在测试中的每个数组中，我都希望有子数组.使用第一个数组'0''1,2'"，使另一个for循环遍历子数组的内容.

in each array within tests, I want to have sub arrays. With the first array "'0' '1,2'", make another for loop to go through the contents of the sub array.

推荐答案

自bash 4.3起.(3个级别，第一个仅包含一个用于演示的元素):

Since bash 4.3. (3 levels, the first contains only one element for the demo):

arr01=(0 '1 2')
arr02=(4 '5 6')
arr1=(arr01 arr02)
arr=(arr1)

declare -n elmv1 elmv2

for elmv1 in "${arr[@]}"; do
    for elmv2 in "${elmv1[@]}"; do
        for elm in "${elmv2[@]}"; do
            echo "<$elm>"
        done
    done
done

4.3之前

arr01=(0 '1 2')
arr02=(4 '5 6')
arr1=('arr01[@]' 'arr02[@]')
arr=('arr1[@]')

for elmv1 in "${arr[@]}"; do
    for elmv2 in "${!elmv1}"; do
        for elm in "${!elmv2}"; do
            echo "<$elm>"
        done
    done
done

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