[Shell] cycle Writes a string array?

bash shellScript syntax weird, written in other languages ​​loop array or list is very simple to achieve, or have the appropriate function to do.

The following two ways to achieve:

method one

c=0
for i in `ls ./Data_Analysis/Quantitation/*-VS-*.xls`;do
    pre=`echo $i |sed 's/.*\///'`                                                                                                   
    filelist[$c]="$pre"
    ((c++))
done

echo $c

for i in ${filelist[@]}
do
    sample=`echo $i | sed 's/.xls//'`
    echo $sample
done

Method Two

     filelist=()  
      for i in `ls ./Data_Analysis/Quantitation/*-VS-*.xls`;do
          cp $i ./protein
          sample=`echo $i |sed 's#.*/##' |sed 's/.xls//'`
          filelist+=("$sample")
      done

     echo ${filelist[@]}

    for i in ${filelist[@]};do
        echo $i
    done