msg.sender不唯一

[Morse1113]

webase-front搭建成功后，部署如下合约： 每次调用testMsg，返回的地址都不一样，请问这是什么原因呢？

[Morse1113]

测试发现：function为view或pure时msg.sender是动态变化的，其他function才会需要用户的address

[kay07]

`--------------------------------------------------------------------------------------------- Return code: 0 description: transaction executed successfully Return message: Success

Return value size:1 Return types: (ADDRESS) Return values:(0x691c6293c86af4e37575ce13f50271c55a5dbd4a)

[group:1]> call ViewTest 0xe200b70759a6b62066e4b871300f1555c8121977 testMsg

Return code: 0 description: transaction executed successfully Return message: Success

Return value size:1 Return types: (ADDRESS) Return values:(0x691c6293c86af4e37575ce13f50271c55a5dbd4a)

[group:1]> call ViewTest 0xe200b70759a6b62066e4b871300f1555c8121977 testMsg

Return code: 0 description: transaction executed successfully Return message: Success

Return value size:1 Return types: (ADDRESS) Return values:(0x691c6293c86af4e37575ce13f50271c55a5dbd4a)

[group:1]> ` 我用的view测试的结果，每次都是这个地址0x691c6293c86af4e37575ce13f50271c55a5dbd4a

[CodingCattwo]

constant/view/pure等查询不建议使用msg.sender进行判断，webase后台发起查询交易会使用随机的私钥进行签名。