Code Reading -chap10
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + Chapter10:Code ReadingTools+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++223.Use lexical tools to efficiently search for patternsin a large source code file or acrossmany files．(P．340) 运用词典工具来有效的查找大型源代码文件或者跨许多文件的
