download：Python3入门机器学习 经典算法与应用 轻松入行人工智能

bobo老师特为机器学习初学者量身打造，使用新版python3语言和流行的scikit-learn框架，算法与编程两翼齐飞，由浅入深，一步步的进入机器学习的世界。学到的不只是一门课程，更是不断思考的能力。

适合人群及技术储备要求
如果你对机器学习感兴趣，想从业于机器学习，或是准备参加机器学习相关比赛，本课程非常适合你

学前必备技术
Python3基础语法
具备高等数学，线性代数，概率论基本知识
课程对机器学习基础知识要求是0基础
package com.chengxinet.bobo.utils;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
/**

• Created by Administrator on 2016/1/7.
  */
  public class NetworkUtils {
  public static boolean isNetworkAvailable(Context c) {
  Context context = c.getApplicationContext();
  // 获取手机一切衔接管理对象（包括对wi-fi,net等衔接的管理）
  ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
  if (connectivityManager == null) {
  return false;
  } else {
  // 获取NetworkInfo对象
  NetworkInfo[] networkInfo = connectivityManager.getAllNetworkInfo();
  if (networkInfo != null && networkInfo.length > 0) {
  for (NetworkInfo aNetworkInfo : networkInfo) {
  // System.out.println(i + "===状态===" + networkInfo[i].getState());
  // System.out.println(i + "===类型===" + networkInfo[i].getTypeName());
  // 判别当前网络状态能否为衔接状态
  if (aNetworkInfo.getState() == NetworkInfo.State.CONNECTED) {
  return true;
  }
  }
  }
  }
  return false;
  }
  /**
  • 判别WIFI能否翻开
  • @param context
  • @return
    */
    public static boolean isWifiEnabled(Context context) {
    ConnectivityManager mgrConn = (ConnectivityManager) context
    .getSystemService(Context.CONNECTIVITY_SERVICE);
    TelephonyManager mgrTel = (TelephonyManager) context
    .getSystemService(Context.TELEPHONY_SERVICE);
    return ((mgrConn.getActiveNetworkInfo() != null && mgrConn
    .getActiveNetworkInfo().getState() == NetworkInfo.State.CONNECTED) || mgrTel
    .getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS);
    }
    /**
  • 判别能否是3G网络
  • @param context
  • @return
    */
    public static boolean is3rd(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context
    .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo networkINfo = cm.getActiveNetworkInfo();
    if (networkINfo != null
    && networkINfo.getType() == ConnectivityManager.TYPE_MOBILE) {
    return true;
    }
    return false;
    }
    /**
  • 判别是wifi还是3g网络
  • @param context
  • @return
    */
    public static boolean isWifi(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context
    .getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo networkINfo = cm.getActiveNetworkInfo();
    if (networkINfo != null
    && networkINfo.getType() == ConnectivityManager.TYPE_WIFI) {
    return true;
    }
    return false;
    }
    }