泰坦尼克号船员获救预测 第一步导入各种包 import numpy as np import pandas as pd import matplotlib.pyplot as plt plt.rcParams['font.sans-serif']=['SimHei'] #用来正常显示中文标签 import seaborn as sns from sklearn import datasets from sklearn import impute from sklearn.preprocessing import StandardScaler ,PolynomialFeatures #导入预处理