shell for循环 两种方式

#!/bin/bash

proPath=("text-1" "text-2" "text-3" "text-4");


function main(){
    for data in "${proPath[@]}";
    do
        echo "${data}";
    done
}

function main2(){
    for (( i = 0 ; i < ${#proPath[@]} ; i++ ))
    do
        echo "索引"${i};
        echo ${proPath[$i]}
    done
}


main;
main2;