编译原理——赋值语句和简单表达式(十六)

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四元式。

FourItem.java:

package per.eyuan.util;public class FourItem {String op;String arg1;String arg2;String result;public FourItem(String op, String arg1, String arg2, String result) {super();this.op = op;this.arg1 = arg1;this.arg2 = arg2;this.result = result;}public FourItem() {super();}public String getOp() {return op;}public String getArg1() {return arg1;}public String getArg2() {return arg2;}public String getResult() {return result;}public void setArg1(String arg1) {this.arg1 = arg1;}public void setArg2(String arg2) {this.arg2 = arg2;}public void setResult(String result) {this.result = result;}}


 

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