2.对Legacy代码的支持
TIOBE 2020 年 6 月份的编程语言排行榜已经出来了。这个号称江湖兵器谱排行榜，每个月都会出炉一次，前十名几乎没有变化。C语言已经蝉联了2个月的第一，而Java和Python依然是老二和老三，市场热度常见不减。
C语言的第一跟全球5G时代的到来，万物互联，工业智能化有关，因为底层的代码全部都是C语言编写，部分会用C++，一起来看一下榜单：
而Java和Python两门语言都是目前非常热门的语言，可谓北乔峰南慕容，二者不分上下，棋逢对手。但是对于初学者来说，非常困惑，因为时间和精力有限，上手必须要先学一门，到底选那个好呢，今天3分钟带你透彻了解：
1.运行速度
Java是静态语言静态编译的，速度上要比Python快的很多，而Python动态类型语言，一边执行一边编译，速度要上慢一些。
对于legacy代码的支持，由于Java大量的用于电商，互联网后端，银行等大型系统，所以对于legacy的代码的数量要远大于Python。而Python要更轻量级一些，没有那么多legacy的问题。尤其是Py3即将全面推广，Py2要退出历史舞台。
3.代码开发效率
Python代码开发效率非常高，同样的函数功能，Java需要十几行,Python只要几行，代码数量要远小于Java,这样开发的时间和效率比Java高很多。目前为止我认为Python是最优美的语言。
4.数据库的支持
Java跟数据库结合更紧密一些，有大量的数据库支持Java，类似JDBC这样的封装，使得的Java使用数据库更容易。
Python虽然没有他俩关系那么铁，但是目前支持Python的数据库也非常多，而且很多主流数据库SQL,Mongodb,Redis都有API支持Python, 可以说Python最不缺的就是库。
5.应用领域
Java主要的战场是在Android手机开发和Web后端开发，而Python主要应用在数据科学，机器学习，人工智能领域和IOT。
可以说两个都是各自领域的霸主，但是随着谷歌扶植Kotlin来取代Java,而后端开发NodeJS强势崛起，所以Java的后端开发霸主地位正在被挑战。
6.薪资收入
月薪收入Python略胜一筹,主要是因为人工智能太火了，起步价都在30k左右，所以应届生的薪资要高于Java。但是对于资深工程师来说，就不一定喽,看下面的图:
6年以上的资深工程师，明显Java程序员的薪资要比Python高一些，但是也只是略高一点点。哇一个月都是60多K,这个收入还是很诱人的，国内应该没有这么高。
7.语法
Python的语法应该是选胜于Java,简洁优美，而且库非常非常多。如果上手学Python，学习成本和难度要低很多，这也是为啥K12的学生首选语言都是Python.
通过以上的比较，小编也说说自己的心得：
综合来看,Python是一门上手非常快，容易学的语言，如果是没有编程基础的文科生，或者是非计算机行业的理科生，学习Python会容易很多。
大家知道研发岗位分开发和测试，如果是做测试的同学，毫无疑问必须要学Python。测试，运维，Devops这些岗位Python应该是远胜于Java。代码的开发效率，是超过Java很多的。效率就是金钱，可以帮助老板，帮助公司节省成本，省下很多钱。
如果是做数据分析，数据挖掘，无论是从excel转Python，还是R语言转Python，Python在数据分析的领域目前也是无敌的，因为太方便了。虽然说R语言是专门的数据分析语言，但是学习成本太高，通用型不强。
如果选择人工智能，机器学习，数据挖掘，Python也是你最佳选择。目前人工智能领域，Python是最通用的语言，但是AI领域编程语言并不是最最最核心的，算法和数学知识的运用才是根本。
而对于后端开发Java目前更占优势，因为legacy的后端市场java的份额比较大，但是对于小公司或者创业公司，后端市场Django,NodeJS也是非常有竞争力的。
欢迎大家留言讨论，投出你的一票：
本文转载来自：程序员GitHub，需要转载开白请联系小助手。
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data-darkmode-original-color-15870356071023="rgb(51, 51, 51)" data-darkmode-bgimage-15870356071023="1" data-darkmode-bgcolor-15882384789136="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15882384789136="rgb(255, 255, 255)" data-darkmode-color-15882384789136="rgb(51, 51, 51)" data-darkmode-original-color-15882384789136="rgb(51, 51, 51)" data-darkmode-bgimage-15882384789136="1" data-darkmode-bgcolor-15882396318564="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15882396318564="rgb(255, 255, 255)" data-darkmode-color-15882396318564="rgb(51, 51, 51)" data-darkmode-original-color-15882396318564="rgb(51, 51, 51)" data-darkmode-bgimage-15882396318564="1" data-darkmode-bgcolor-15900529136199="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15900529136199="rgb(255, 255, 255)" data-darkmode-color-15900529136199="rgb(51, 51, 51)" data-darkmode-original-color-15900529136199="rgb(51, 51, 51)" data-darkmode-bgimage-15900529136199="1" style="font-size: 14px;color: rgb(51, 51, 51);text-align: right;"><span data-darkmode-bgcolor-15860613985508="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15860613985508="rgb(255, 255, 255)" data-darkmode-color-15860613985508="rgb(51, 51, 51)" data-darkmode-original-color-15860613985508="rgb(51, 51, 51)" data-darkmode-bgimage-15860613985508="1" data-darkmode-bgcolor-15870356070738="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15870356070738="rgb(255, 255, 255)" data-darkmode-color-15870356070738="rgb(51, 51, 51)" data-darkmode-original-color-15870356070738="rgb(51, 51, 51)" data-darkmode-bgimage-15870356070738="1" data-darkmode-bgcolor-15870356071023="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15870356071023="rgb(255, 255, 255)" data-darkmode-color-15870356071023="rgb(51, 51, 51)" data-darkmode-original-color-15870356071023="rgb(51, 51, 51)" data-darkmode-bgimage-15870356071023="1" data-darkmode-bgcolor-15882384789136="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15882384789136="rgb(255, 255, 255)" data-darkmode-color-15882384789136="rgb(51, 51, 51)" data-darkmode-original-color-15882384789136="rgb(51, 51, 51)" data-darkmode-bgimage-15882384789136="1" data-darkmode-bgcolor-15882396318564="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15882396318564="rgb(255, 255, 255)" data-darkmode-color-15882396318564="rgb(51, 51, 51)" data-darkmode-original-color-15882396318564="rgb(51, 51, 51)" data-darkmode-bgimage-15882396318564="1" data-darkmode-bgcolor-15900529136199="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15900529136199="rgb(255, 255, 255)" data-darkmode-color-15900529136199="rgb(51, 51, 51)" data-darkmode-original-color-15900529136199="rgb(51, 51, 51)" data-darkmode-bgimage-15900529136199="1" style="font-family: 楷体, 楷体_GB2312, SimKai;">点的“在看”，否则就看不到我了555</span></section><p><span style="font-size: 15px;letter-spacing: 0.544px;text-align: start;color: rgb(63, 63, 63);"></span></p></section></section></section></section></section></section>本篇文章来源于: 菜鸟学Python
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