56 lines
834 B
Bash
56 lines
834 B
Bash
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#!/usr/bin/env bash
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# 创建数组
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nums=([2]=2 [0]=0 [1]=1)
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colors=(red yellow "dark blue")
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# 访问数组的单个元素
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echo ${nums[1]}
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# Output: 1
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# 访问数组的所有元素
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echo ${colors[*]}
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# Output: red yellow dark blue
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echo ${colors[@]}
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# Output: red yellow dark blue
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printf "+ %s\n" ${colors[*]}
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# Output:
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# + red
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# + yellow
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# + dark
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# + blue
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printf "+ %s\n" "${colors[*]}"
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# Output:
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# + red yellow dark blue
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printf "+ %s\n" "${colors[@]}"
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# Output:
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# + red
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# + yellow
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# + dark blue
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# 访问数组的部分元素
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echo ${nums[@]:0:2}
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# Output:
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# 0 1
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# 访问数组长度
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echo ${#nums[*]}
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# Output:
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# 3
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# 向数组中添加元素
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colors=(white "${colors[@]}" green black)
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echo ${colors[@]}
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# Output:
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# white red yellow dark blue green black
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# 从数组中删除元素
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unset nums[0]
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echo ${nums[@]}
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# Output:
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# 1 2
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