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软件许可及服务协议版本：2018年6月在接受本协议之前，请您仔细阅读本协议的全部内容（特别是以粗体及/或下划线标注的内容）。如果您对本协议的条款有疑问的，请通过相关业务部门进行询问，我们将向您解释条款内容。如果您不同意本协议的任意内容，或者无法准确理解我们对条款的解释，请不要进行后续操作。本软件许可...

android应用软件几乎都删除干净了，在安装一个app的时候，总是报错：“已安?400报错

安装app的时候，总是报错“已安装了存在签名冲突的同名数据包”，可是这个android系统中，压根不存在同名数据包问题，为啥总是报这个错误呢？除了同名签名冲突问题外，还有没有其他错误导致报这个错误啊？

互联网安全-移动APP漏洞风险与解决方案

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软件系统APP等可以发布多版本的问题 400 请求报错

软件系统可以发布多版本，请问后台是如何处理多版本问题的，是跟前端版本一对一，还是一对多？如果是一对多，后台的系统是如何分辨的请求的版本的？比如手机APP可以发布多个版本，如果用户不升级，后台的系统是如何做到所有版本都能使用的？还请仔细说明实现的方案？

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