raw_data_X = [[3.393533211,2.331273381],
[3.110073483,1.781539638],
[1.343808831,3.368360954],
[3.582294042,4.679179110],
[2.280362439,2.866990263],
[7.423436942,4.696522875],
[5.745051997,3.533989803],
[9.172168622,2.511101045],
[7.792783481,3.424088941],
[7.939820817,0.791637231]
]
raw_data_Y = [0,0,0,0,0,1,1,1,1,1]
plt.scatter(x_train[y_train==0,0],x_train[y_train==0,1],color = 'r')
plt.scatter(x_train[y_train==1,0],x_train[y_train==1,1],color = 'b')
y_train==0,0],y_train==0,1],y_train==1,0],y_train==1,1] //代表什么意思