根據顏色代碼：
https://m.wang1314.com/doc/webapp/topic/21084865.html
繪制多條線 y=sin（x）+1 y=sin（x）+2 y=sin（x）+3 ……y=sin（x）+7 ，每個顏色不同，點樣式不同，線類型循環重復。
‘.’：點(point marker) ‘,’：像素點(pixel marker)
‘o’：圓形(circle marker) ‘v’：朝下三角形(triangle_down marker)
‘^’：朝上三角形(triangle_up marker) ‘<‘：朝左三角形(triangle_left marker)
‘>’：朝右三角形(triangle_right marker) ‘1’：(tri_down marker)
‘2’：(tri_up marker) ‘3’：(tri_left marker)
‘4’：(tri_right marker) ‘s’：正方形(square marker)
‘p’：五邊星(pentagon marker) ‘*’：星型(star marker)
‘h’：1號六角形(hexagon1 marker) ‘H’：2號六角形(hexagon2 marker)
‘+’：+號標記(plus marker) ‘x’：x號標記(x marker)
‘D’：菱形(diamond marker) ‘d’：小型菱形(thin_diamond marker)
‘|’：垂直線形(vline marker) ‘_’：水平線形(hline marker)
我的答案：
import matplotlib.pyplot as plt
import numpy as np
colorlist=plt.cm.cool(np.linspace(0,1,7))
markers=["D","x","h",".","^",">","v"]
x=np.linspace(0,4*np.pi)
y=np.sin(x)+1
for i in range(0,7):
plt.plot(x,y+i,color=colorlist[i],linestyle=":",marker=markers[i])
plt.show()