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??????1???????????????????????????????????????????????????????????????????object?????????????????????????????object????
????Eg??
????<span style="font-family:KaiTi_GB2312;font-size:18px;"><strong>Int I = 10;
????Object obj = i; //?????????</strong></span>
????<span style="font-family:KaiTi_GB2312;font-size:18px;"><strong>Int I = 10;
????Object obj = (object)i; //?????????</strong></span>
??????????i?????10?????????з?????obj?????????????????????????з?????i?????????????????????з??????????obj?а????????
??????2???????????????????????????????????????????????????????????????????????????????????????????????????????????????????С?
????Eg??
????Object obj = 10;
????Int I = (int)obj; //??????????
??????3??????????????????????????????????????????
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2023/3/23 14:23:39???д?ò??????????
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