運算符重載: 1 聲明爲類的成員函數,形參會少一個 2 聲明爲友元函數,形參會多一個
前綴++運算符,和後綴++運算符重載時候,參數列表的區別,會多一個int,
以後補上細節
{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"typ
{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragr
{"type":"doc","content":[{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null