[code]usingSystem;usingSystem.Collections;usingSystem.Text;usingSystem.IO;usingSystem.Collections.Specialized;usingSystem.Text.RegularExpressions;usingSystem.Diagnostics;namespaceCSS{publicclassApp{publicstaticvoidMain(string[]args){//初始化CSS解析器CssDocumentdoc=newCssDocument();//加载现有CSS文件doc.Load(Dire...