如下所示：
#-*- coding:utf-8 -*-
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.font_manager import FontProperties
#k与客户端处理时间的值之间的关系
x=range(2,51,2)
y1=[5.393128497232703, 9.57638681757734, 13.828038570286598, 17.88060602988053, 22.943959373243686, 26.892428234326893, 30.478589185624
