python（x,y）坐标排序python数组排序方法详解（sort， sorted，argsort）_什么都干的派森的博客-CSDN博客_python 数组排序

import random


def sortPoints(allCirclesCenter):
    # 0表示第一列元素1表示第二列元素
    allCirclesCenter.sort(key=lambda elem: elem[0])  #
    for item in allCirclesCenter:
        print("元素 is:", item)
    print(5*"=======")


def sortPoints_inner(allCirclesCenter):

    # 所有点按照x轴排序 elem[0]y轴elem[1]
    def takeFirst(elem):
        # print(elem[0])
        return elem[0]
    allCirclesCenter.sort(key=takeFirst)  #

    for item in allCirclesCenter:
        print("元素 is:", item)


if __name__ == "__main__":

    xy_points = []

    for i in range(5):
        x = random.randint(1, 10)
        y = random.randint(1, 10)
        xy = (x, y)
        xy_points.append(xy)

    for item in xy_points:
        print("元素 is:", item)
    print(5*"--------")

    sortPoints(xy_points)
    # sortPoints_inner(xy_points)