找了两个小时，从Google上找到的英文资料，关于Visio画N-S图的一些问题。Visio需要以前的版本才能找到Nassi-Schneiderman diagram。模板可以直接导进2003里面直接使用。 Is Microsoft willing to add a Nassi-Schneiderman diagram Stencil for Visio 2003 Pro for download off its website? I know I had a hard time finding on online, and did not own Visio 2002. I can't even imagine the fustration other students have probably had. I finally ended up uploading them at http://users.tm.net/tonietienne for my classmates.