不用sizeof，没有汇编。 为什么一定要20个字呢？-not sizeof no compilation. Why must 20 characters?

Packet : 9133199420070319ycjusb.zip filelist
usb/
usb/usb.dsw
usb/usb.ncb
usb/Debug/
usb/Debug/vc60.idb
usb/Debug/vc60.pdb
usb/Debug/usb.pch
usb/Debug/main.obj
usb/Debug/usb.ilk
usb/Debug/usb.exe
usb/Debug/usb.pdb
usb/usb.plg
usb/main.c
usb/usb.opt
usb/usb.dsp

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