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标题: python都说效率高，1个python工程师=2个PHP工程师=3个java工程... [打印本页]

作者: 人工智能 时间: 2018-8-7 21:14
标题: python都说效率高，1个python工程师=2个PHP工程师=3个java工程...
本帖最后由人工智能于 2018-8-16 15:53 编辑

为了Python的自学党们，黑马真的是拼了

！我们不仅有“人工智能+Python学习路线图”，还根据以往的经验，总结出学习Python之前的各种问题，想详细了解，从此贴开始吧！！！

Python都说效率高，1个Python工程师=2个PHP工程师=3个Java工程师，这个是什么意思？

service api的demo实现，里面有java，php和python三种实现，打开一看，被python这类脚本语言所折服，单从代码量上来说，差别实在是太大，如果都是熟手开发，业务场景也正好适合该语言的话，开发效率自然就不用再说：

扣除掉注释之后：java 56行；php：30行；python：15行

package com.test.http;

import java.io.*;

import java.net.HttpURLConnection;

import java.net.URL;

import java.security.MessageDigest;

import java.math.BigInteger;

public class ApiDemo{

public static void sendRequest(String id, String secureKey) throws IOException{

URL request = new URL("xxxxxx?id="+id);

HttpURLConnection connection = (HttpURLConnection)request.openConnection();

connection.setDoOutput(true);

connection.setDoInput(true);

connection.setRequestMethod("POST");

connection.setUseCaches(false);

connection.setInstanceFollowRedirects(true);

connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

connection.connect();

String scanParam = "{\"scanlist\":[{\"sid\":\"123\", \"url\":\"http://dl.test.com/test.apk\", \"md5\":\"3d41f29d762ec547bfa4b42f57f3dc7c\"}]}";

String authKey = getStringMd5(scanParam + id + secureKey);

String post = "authkey=" + authKey + "&request=" + scanParam;

DataOutputStream writeStream = new DataOutputStream(connection.getOutputStream());

writeStream.writeBytes(post);

writeStream.flush();

writeStream.close();

BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));

String line="";

while ((line = reader.readLine()) != null){

System.out.println(line);

}

reader.close();

connection.disconnect();

}

public static String getStringMd5(String src) {

MessageDigest md;

StringBuilder md5 = new StringBuilder();

try{

md = MessageDigest.getInstance("md5");

md.update(src.getBytes());

for (byte b : md.digest()) {

md5.append(String.format("%02x", b));

}

catch (Exception e) {

e.printStackTrace();

}

return md5.toString();

}

public static void main(String[] args) throws Exception {

try {

sendRequest("test", "123456");

} catch (IOException e) {

e.printStackTrace();

}

<?php
$id="test";
$secure_key="123456";
$api_url="http://xxxxx?id=".$id;
$scan_parm="{\"scanlist\":[{\"sid\":\"123\", \"url\":\"http://dl.test.com/test.apk\", \"md5\":\"3d41f29d762ec547bfa4b42f57f3dc7c\"}]}";
$authkey=md5($scan_parm.$id.$secure_key);
$post="authkey=".$authkey."&request=".$scan_parm;
$url_info=parse_url($api_url);
if(!isset($url_info["port"])){
$url_info["port"]=80;
}
$request.="POST ".$url_info["path"]."?".$url_info["query"]." HTTP/1.1\r\n";
$request.="Host: ".$url_info["host"]."\r\n";
$request.="Cache-Control: no-cache\r\n";
$request.="Content-type: application/x-www-form-urlencoded\r\n";
$request.="Accept: text/html\r\n";
$request.="Content-length: ".strlen($post)."\r\n";
$request.="Connection: close\r\n";
$request.="\r\n";
$request.=$post;
$fp = fsockopen($url_info["host"], $url_info["port"]);
if(!$fp){
echo "$errstr($errno)\n";
}
fwrite($fp, $request);
while(!feof($fp)){
$response .= fgets($fp, 128);
}
echo "$response\n";
?>

#!/usr/bin/python
import httplib, md5
if __name__ == "__main__":
id="test"
secure_key="123456"
scan_param='{"scanlist":[{"sid":"123", "url":"http://xxxxx/test.apk", "md5":"3d41f29d762ec547bfa4b42f57f3dc7c"}]}"'
authkey=md5.new(scan_param + id + secure_key).hexdigest()
post= "authkey=%s&request=%s" %(authkey, scan_param)
domain="xxxxx"
url_path = "/api/scansoft?id="+id
headers = {"Content-type": "application/x-www-form-urlencoded"}
connect = httplib.HTTPConnection(domain)
connect.request("POST", url_path, post, headers)
res = connect.getresponse()
print res.read()

所以，Python的开发效率极高。