摘要: 1.判断是否为double型 object instanceof Double 2.判断是否是int型 object instanceof Interger 3.判断是否是String型 object instanceof String 阅读全文
posted @ 2020-09-02 10:26 Geeksongs 阅读(12753) 评论(0) 推荐(0) 编辑

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