FTP上传与下载差异比对
大家我询问个内容，我这里有许多个上传端，分别往服务器传代码，为了避免修改重复与文件被替换，怎么做到文件与文件上传的差异替换与新增
求思路。版本控制除外！
回复讨论(解决方案)
设一个全局变量 ，记录一定时间片内上传递增， 上传到临时文件夹做一个副本， 根据这个全局变量计数，来读入所有文件， 然后生成一个最终的文件， 很粗糙的一个办法
FTP上传文件，如果文件名相同，会自动提醒你是否覆盖的。
差异最好解决：md5_file
其他么。。。看楼下。
现在的ftp软件不少都有同步功能
FTP上传文件，如果文件名相同，会自动提醒你是否覆盖的。 自动覆盖没问题。现在就是多点上传文件，文件差异性就麻烦了！
现在的ftp软件不少都有同步功能 有差异同步不？
现在的ftp软件不少都有同步功能 有差异同步不？
ftp的同步相对较弱，如果要比较文件，相当于全部文件下载一次到本地hash，因为服务器端没有文件的hash资料可比较，所以ftp一般仅以字节数+时间戳比较
现在的ftp软件不少都有同步功能 有差异同步不？
ftp的同步相对较弱，如果要比较文件，相当于全部文件下载一次到本地hash，因为服务器端没有文件的hash资料可比较，所以ftp一般仅以字节数+时间戳比较 额。我再去找找。谢谢呢！
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