When you loop in an array like you did, your for variable(in this example i ) is current element of your array. For example if your ar is [1 ... ... <看更多>

In this Arrays In Python video, you will learn What is an Array Data Structure, How Array Works in Python, Python Data Structures and ... ... <看更多>

We'll see examples of both these types of functions here. Array arithmetic¶. NumPy's ufuncs feel very natural to use because they make use of Python's native ... ... <看更多>

This post from stack overflow should give you what you want. The magic code boils down to the following. flat_list = [item for sublist in l ... ... <看更多>