AKA4's questions

当我编写一个名为 array_call_self.sh 的脚本时，如下所示

#!/bin/bash
declare -A num word
word=(
 [a]='index_a'
 [b]='index_b'
 [c]='index_c'
)
num=(
 [a]=1
 [b]=2
 [c]=3
)
array=${$1[@]}
for i in ${$array[@]};do
  echo $i
done

当我运行bash array_call_self.sh word 它时返回我

test.sh: line 13: ${$1[@]}: bad substitution
test.sh: line 14: ${$array[@]}: bad substitution