构建数据的归一化和标准化处理（某金融数据集）

    import numpy as np
    import pandas as pd
    import matplotlib.pyplot as plt
    from sklearn.model_selection import train_test_split
    from sklearn.metrics import accuracy_score,precision_score,recall_score,f1_score,roc_auc_score,roc_curve,auc
    from xgboost import XGBClassifier
    from lightgbm import LGBMClassifier
    from sklearn.linear_model import LogisticRegression
    from  sklearn import svm
    from sklearn.tree import DecisionTreeClassifier

    data=pd.read_csv('./data.csv',index_col=0,encoding='gbk')

    #单独提取出y列