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作者 peterwu4 在 PTT [ C_and_CPP ] 看板的留言(推文), 共75則
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[問題] C++ 繼承 object model layout 問題
[ C_and_CPP ]11 留言, 推噓總分: +3
作者: gecer - 發表於 2017/10/23 09:24(8年前)
6Fpeterwu4: 你的Emplyee和Hourlyworker應該有繼承的關係,不然指標10/23 15:17
7Fpeterwu4: 會給不過去;另外,繼承的話不是virtual同名同參數就當10/23 15:18
8Fpeterwu4: 作被蓋掉了吧~10/23 15:18
[問題] struct使用變數的static問題
[ C_and_CPP ]10 留言, 推噓總分: +3
作者: edisonhello - 發表於 2017/10/19 22:59(8年前)
4Fpeterwu4: 不看你給的畫面還沒發現,你要初始化var這個變數的話,10/20 00:02
6Fpeterwu4: 就不要再init()裡面又宣告一次"int var"了~ 而且一般用10/20 00:04
7Fpeterwu4: 建構式初始化參數比較好10/20 00:05
8Fpeterwu4: func的參數是由var決定的話,就不要給參數了~10/20 00:09
9Fpeterwu4: int func() { int n=var, m = var+5; return n*m; }10/20 00:10
[問題] 加了printf結果變數就不一樣了?
[ C_and_CPP ]59 留言, 推噓總分: +5
作者: ketchupgood - 發表於 2017/10/04 04:42(8年前)
43Fpeterwu4: 原po是用286在算嗎?XDD 終止條件設字串長度就好了10/04 18:38
[問題] if條件式是否可以使用字串 或者如何修改
[ C_and_CPP ]20 留言, 推噓總分: +6
作者: aa12783509 - 發表於 2017/10/03 21:17(8年前)
8Fpeterwu4: if (x == 'y') {...}10/03 23:30
9Fpeterwu4: 這樣改比較好:10/03 23:46
10Fpeterwu4: string x; // 110/03 23:46
11Fpeterwu4: if (x == "yes") { // 210/03 23:47
[問題] 超級新手的Class問題
[ C_and_CPP ]7 留言, 推噓總分: +3
作者: birka1222 - 發表於 2017/09/28 11:54(8年前)
4Fpeterwu4: int y=3; 下面加一行 this->y=y; 此y非彼y09/28 12:38
[問題] 從struct 印出字串
[ C_and_CPP ]23 留言, 推噓總分: +5
作者: SKTP - 發表於 2017/09/27 21:25(8年前)
14Fpeterwu4: 矩陣不能用=給,但是結構可以,所以結構裡面有矩陣可以09/27 23:21
15Fpeterwu4: =的過去嗎?XD09/27 23:21
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