一个简单的编译器实现\.classpath
....................\.project
....................\classes\calculator\Calculator.class
....................\.......\..........\Node.class
....................\.......\..........\Queue.class
....................\.......\..........\QueueException.class
....................\.......\..........\Stack.class
....................\.......\..........\StackException.class
....................\.......\..........\Token.class
....................\.......\..........\TokenException.class
....................\.......\..........\TokenNumeric.class
....................\.......\..........\TokenOperator.class
....................\src\calculator\Calculator.java
....................\...\..........\Node.java
....................\...\..........\Queue.java
....................\...\..........\QueueException.java
....................\...\..........\Stack.java
....................\...\..........\StackException.java
....................\...\..........\Token.java
....................\...\..........\TokenException.java
....................\...\..........\TokenNumeric.java
....................\...\..........\TokenOperator.java
....................\classes\calculator
....................\src\calculator
....................\classes
....................\src
一个简单的编译器实现