SHFileOp.pFrom = "c:\123" + Chr(0)Chr(0)听说是字符串结束标志符号,上句中,加和不加区别在哪里?不加也已经结束了呀,我试了下两种情况,结果是一样的.刚才试了下.SHFileOp.pFrom = "c:\123" + Chr(0) (这里的
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 02:14:24
![SHFileOp.pFrom =](/uploads/image/z/6436431-63-1.jpg?t=SHFileOp.pFrom+%3D+%22c%3A%5C123%22+%2B+Chr%280%29Chr%280%29%E5%90%AC%E8%AF%B4%E6%98%AF%E5%AD%97%E7%AC%A6%E4%B8%B2%E7%BB%93%E6%9D%9F%E6%A0%87%E5%BF%97%E7%AC%A6%E5%8F%B7%2C%E4%B8%8A%E5%8F%A5%E4%B8%AD%2C%E5%8A%A0%E5%92%8C%E4%B8%8D%E5%8A%A0%E5%8C%BA%E5%88%AB%E5%9C%A8%E5%93%AA%E9%87%8C%3F%E4%B8%8D%E5%8A%A0%E4%B9%9F%E5%B7%B2%E7%BB%8F%E7%BB%93%E6%9D%9F%E4%BA%86%E5%91%80%2C%E6%88%91%E8%AF%95%E4%BA%86%E4%B8%8B%E4%B8%A4%E7%A7%8D%E6%83%85%E5%86%B5%2C%E7%BB%93%E6%9E%9C%E6%98%AF%E4%B8%80%E6%A0%B7%E7%9A%84.%E5%88%9A%E6%89%8D%E8%AF%95%E4%BA%86%E4%B8%8B.SHFileOp.pFrom+%3D+%22c%3A%5C123%22+%2B+Chr%280%29+%28%E8%BF%99%E9%87%8C%E7%9A%84)
SHFileOp.pFrom = "c:\123" + Chr(0)Chr(0)听说是字符串结束标志符号,上句中,加和不加区别在哪里?不加也已经结束了呀,我试了下两种情况,结果是一样的.刚才试了下.SHFileOp.pFrom = "c:\123" + Chr(0) (这里的
SHFileOp.pFrom = "c:\123" + Chr(0)
Chr(0)听说是字符串结束标志符号,上句中,加和不加区别在哪里?不加也已经结束了呀,我试了下两种情况,结果是一样的.
刚才试了下.
SHFileOp.pFrom = "c:\123" + Chr(0)
(这里的路径为 c:\123 )
SHFileOp.pFrom = "c:\123" + Chr(0) + Chr(65)
(这里的路径仍为 c:\123 )
结果显示,这里并不是c:\123,为什么呢?
SHFileOp.pFrom = "c:\123" + Chr(65) + Chr(65)
(这里的路径就为 c:\123AA )这里路径为c:\123aa也可以.
SHFileOp.pFrom = "c:\123" + Chr(0)Chr(0)听说是字符串结束标志符号,上句中,加和不加区别在哪里?不加也已经结束了呀,我试了下两种情况,结果是一样的.刚才试了下.SHFileOp.pFrom = "c:\123" + Chr(0) (这里的
回阁下,如果就这样看当然觉得没有区别,后面加chr(0)是标准化格式,也是为了安全,防止类似“注入”之类的让你的原路径c:\123被更改而被它人利用,
你可以看一下这三句就知道区别了
SHFileOp.pFrom = "c:\123" + Chr(0)
(这里的路径为 c:\123 )
SHFileOp.pFrom = "c:\123" + Chr(0) + Chr(65)
(这里的路径仍为 c:\123 )
SHFileOp.pFrom = "c:\123" + Chr(65) + Chr(65)
(这里的路径就为 c:\123AA )