各位大大好，工作非开发，想多自学点程式
几年前看过marshal，至今仍不懂
请各位大大帮忙解释，谢谢
https://stackoverflow.com/questions/41638504/sleep-lib-kernel32-gives-64-bit-sys
tems-error
截取一段如下，包含marshal
The dwMilliseconds parameter is a DWORD, so it will technically be 32bit on a 32
bit machine and 64bit on a 64bit machine. Because of this, it requires PtrSafe n
otation (although technically dwMilliseconds will marshal correctly because it's
ByVal... and who wants to wait that long anyway) Change the declaration to this
: