文件名称:LexicalAnalysis
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此为词法分析程序，词法分析要求：简单词法文法：
<关键字>->main|int|char|string|while|do|if|else|for
<标识符>->L|<标识符>L|<标识符>D
<整数>->D|<整数>D
<运算符>->+|-|*|/|=|<|>|<=|>=|<>|= =
<界符>->( | ) | [ | ] | { |}
具体内容见报告-This is the lexical analysis process, lexical analysis of requirements: a simple lexical grammar: < keyword> -> main | int | char | string | while | do | if | else | for < identifier> -> L | < identifier> L | < identifier> D < integer> -> D | < integer> D < operator >->+|-|*|/|=|< |> |< =|> =|< > |= = < sector Fu> -> (|) | [|] | (|) the specific contents of the report
<关键字>->main|int|char|string|while|do|if|else|for
<标识符>->L|<标识符>L|<标识符>D
<整数>->D|<整数>D
<运算符>->+|-|*|/|=|<|>|<=|>=|<>|= =
<界符>->( | ) | [ | ] | { |}
具体内容见报告-This is the lexical analysis process, lexical analysis of requirements: a simple lexical grammar: < keyword> -> main | int | char | string | while | do | if | else | for < identifier> -> L | < identifier> L | < identifier> D < integer> -> D | < integer> D < operator >->+|-|*|/|=|< |> |< =|> =|< > |= = < sector Fu> -> (|) | [|] | (|) the specific contents of the report
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词法源程序加报告
................\readme.txt
................\wish.h
................\词法.cpp
................\readme.txt
................\wish.h
................\词法.cpp