对字符串数组执行多重复制操作

I have an array full of string, the array is going to be used to create a CSV file from the array elements, but before I dump the values into a CSV file I need to perform some multiplication on some elements. For example I need to multiply the value "20" in array[0] by another value say "100"in array[1]. I have an array full of string, the array is go