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最新推荐文章于 2024-04-27 12:56:11 发布

吴珝君

最新推荐文章于 2024-04-27 12:56:11 发布

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CC 4.0 BY-SA版权

分类专栏： C++

本文链接：https://blog.youkuaiyun.com/weixin_39804483/article/details/100011570

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Public class OperationFactory {
	public static Operation createOperate(string operate){
		Operation oper = null;
		switch(operate){
	case “+”:
		oper = new OperationAdd();
		break;
	case “-”:
		oper = new OperationSub();
		break;
	Case “*”:
		oper = new OperationMul();
		break;
	Case “/:
		oper = new OperationDiv();
		break;
	}
}