Ruby实现Array#reverse 性能
def reverse(arrays) new_arrays = [] index = arrays.size - 1 while index >= 0 new_arrays << arrays[index] index -= 1 end new_arraysendRuby实现Array#reverse 性能
def reverse(arrays) new_arrays = [] index = arrays.size - 1 while index >= 0 new_arrays << arrays[index] index -= 1 end new_arraysend