作者查詢 / VictorTom
作者 VictorTom 在 PTT [ C_and_CPP ] 看板的留言(推文), 共10783則
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1F推:仔細想想 (Q1+i)+j) 能夠對應舊code的 Q1[i][j] 嗎?05/28 14:01
2F→: &(Q1+i)+j)05/28 14:02
3F→:如果實在是懶得malloc兩維陣列的話, 新code的Q1~3的存取05/28 14:03
4F→:試解: 舊code的 Q1[1][2] 與 Q1[1][3] 差幾個double?05/28 14:04
5F→: 舊code的 Q1[1][1] 與 Q1[2][1] 又差了幾個double?05/28 14:05
6F→:2F打錯, 一直typo..Orz 是 (Q1+i)+j vs &Q1[i][j] ...05/28 14:08
3F推:個人覺得你只動態要了兩層; Two是一維指標, 那Two[j] ?05/27 23:19
4F→:你貼的err msg就明白的說delete的對象必須要是個指標,05/27 23:20
5F→:這就是小弟上面問的, 你想想Two[j]出來是什麼東西:)05/27 23:20
17F推:程式碼裡有改成對應的port號嗎? (以你資訊來看是COM4)05/25 00:36
18F→:話說回來, 應該沒有 ! 了吧? USB2COM driver要裝對@_@"05/25 00:37
31F推:雖然說早就有現成的lib可以用, 但是初學的時候拿來練習05/23 00:00
32F→:思考/解決問題,規劃/實作程式,當作練基本功,也不壞吧@@"05/23 00:01
3F推:本來想用X arr[]抓兩個位址來減, 不能有變數和指標就...05/08 00:13
40F推:小弟也覺得敘述全對沒一個可選; 另外C的確只有call by05/05 16:45
41F→:value; C++則是多了一個call by reference; call by05/05 16:46
42F→:address則是一個容易誤解也不怎麼正式的稱法, 最好避免05/05 16:46
43F→:使用. CbV與CbR, 小弟以為看參數傳遞時被推進stack的是05/05 16:47
44F→:參數的r-value或是l-value可以當作區分(印象中啦XD)05/05 16:47
10F推:推圖解:)05/03 23:54
9F推:如果如您所說你已經懂鏈結串列的話, 畫個簡單的鏈串圖,05/03 03:12
10F→:套用上面的code跟著推演一遍, 就知道它在幹麻了:)05/03 03:13
41F→:或者不曉得去Prob_Solve會不會有答案@_@"04/22 00:17
28F→:推樓上XD04/22 01:41