python读取csv画折线图

# -*- coding:utf-8 -*-
"""
作者：sunli
日期：2022年04月08日9:24
"""

import os
import cv2
import pandas as pd
import numpy as np
import configparser as cp
import matplotlib.pyplot as plt

Label = {1: 'Standing', 2: 'Walking', 3: 'Joging', 4: 'Jumping', 5: 'Stair up ', 6: 'Stair down', 7: 'Stand to sit',
         8: 'Siting', 9: 'Sit to stand', 10: 'Lying', 0: 'Falling', 11: 'Car-step in', 12: 'Car-step out'}


def show_data(path, name=None):
    '''
    show data
    :param data: DataFrame
    :return:
    '''
    data = pd.read_csv(path)
    num = data.acc_x.size
    print(num)
    t = data.label
    title = Label[t[0]]
    x = np.arange(num)
    fig = plt.figure(1, figsize=(100, 60))
    # 子表1绘制加速度传感器数据
    # plt.subplot(2, 1, 1)
    plt.title(title)
    plt.plot(x, data.acc_x, label='x')
    plt.plot(x, data.acc_y, label='y')
    plt.plot(x, data.acc_z, label='z')

    # 添加解释图标
    plt.legend()
    # x_flag = np.arange(0, num, num/10)
    x_flag = np.arange(0, num + num/10, int(num/10))
    print(x_flag)
    plt.xticks(x_flag)
    if name is None:
        plt.show()
    else:
        plt.savefig(name)
    plt.close()


def main():
    show_data('D:/Dt/MobiAct_Dataset_v2.0/Data/4_400.csv')


if __name__ == '__main__':
    main()