visual c++ vc如何限制软件的使用次数.好使用户购买正版实现软件收费

[{"title":"（ 14 个子文件 13KB ） visual c++ vc如何限制软件的使用次数.好使用户购买正版实现软件收费","children":[{"title":"关于限次软件的制作.plg <span style='color:#111;'> 1.76KB </span>","children":null,"spread":false},{"title":"关于限次软件的制作Dlg.cpp <span style='color:#111;'> 3.99KB </span>","children":null,"spread":false},{"title":"res","children":[{"title":"关于限次软件的制作.ico <span style='color:#111;'> 1.05KB </span>","children":null,"spread":false},{"title":"关于限次软件的制作.rc2 <span style='color:#111;'> 410B </span>","children":null,"spread":false}],"spread":true},{"title":"关于限次软件的制作.clw <span style='color:#111;'> 1.09KB </span>","children":null,"spread":false},{"title":"关于限次软件的制作.dsp <span style='color:#111;'> 4.29KB </span>","children":null,"spread":false},{"title":"Resource.h <span style='color:#111;'> 542B </span>","children":null,"spread":false},{"title":"StdAfx.cpp <span style='color:#111;'> 220B </span>","children":null,"spread":false},{"title":"关于限次软件的制作Dlg.h <span style='color:#111;'> 1.28KB </span>","children":null,"spread":false},{"title":"关于限次软件的制作.dsw <span style='color:#111;'> 561B </span>","children":null,"spread":false},{"title":"关于限次软件的制作.rc <span style='color:#111;'> 5.28KB </span>","children":null,"spread":false},{"title":"关于限次软件的制作.h <span style='color:#111;'> 1.29KB </span>","children":null,"spread":false},{"title":"关于限次软件的制作.cpp <span style='color:#111;'> 2.92KB </span>","children":null,"spread":false},{"title":"StdAfx.h <span style='color:#111;'> 1.03KB </span>","children":null,"spread":false}],"spread":true}]