import numpy as np
import random
import math
import numpy as np
import matplotlib.pyplot as plt
cnt = np.zeros(500)
for t in range(0,500):
    cnt[t] = t
xt = np.zeros(500)
vx = np.loadtxt("D:/speed1x.csv",delimiter=",", dtype=float)
vy = np.loadtxt("D:/speed1y.csv",delimiter=",", dtype=float)
vz = np.loadtxt("D:/speed1z.csv",delimiter=",", dtype=float)
plt.rcParams['font.sans-serif'] = ['Microsoft YaHei']
plt.xlabel('时间')
plt.ylabel('每个时间段x方向位移')
for i in range(0,35):
    xt = np.zeros(500)
    for j in range(0,500):
        xt[j] = vz[i,j]
    plt.plot(cnt,xt)

plt.show()