摘要：package leetcode; public class demo_38 { public String countAndSay(int n) { String s="1"; int j=1; for(int m=1;m<n;m++) { String s1=""; for(int i=0;i< 阅读全文

摘要：#!/usr/bin/python # coding=utf-8 from sklearn.datasets import load_boston from sklearn.model_selection import train_test_split from sklearn.preprocess 阅读全文

摘要：1 #!/usr/bin/python 2 # coding=utf-8 3 from sklearn.datasets import load_iris 4 from sklearn.model_selection import train_test_split 5 from sklearn.tr 阅读全文

摘要：1 #!/usr/bin/python 2 # coding=utf-8 3 from sklearn.datasets import fetch_20newsgroups 4 from sklearn.model_selection import train_test_split 5 from s 阅读全文

摘要：#!/usr/bin/python# coding=utf-8from sklearn.datasets import load_irisfrom sklearn.model_selection import train_test_splitfrom sklearn.preprocessing im 阅读全文