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import javax.script.*;
public class TestScript {
public static void main(String[] args) throws Exception {
String exp = "(1*2)+3/4+5^2";
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("js");
Object result = engine.eval(exp);
System.out.println("结果类型:" + result.getClass().getName() + ",计算结果:" + result);
}
}