作者查詢 / LPH66
作者 LPH66 在 PTT [ C_and_CPP ] 看板的留言(推文), 共6694則
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2F推:char setZero[] = {'0'}; 只會宣告出含一個元素的陣列04/03 17:10
3F→:所以 strcpy 可能存取到不該存取的記憶體04/03 17:10
2F推:這是換行字元問題04/03 16:40
2F推:置底十三誡之十一那個連結先去看過 有問題再來問04/02 18:50
1F推:先讀 然後測 .eof() 是 true 就是沒了04/01 21:35
3F推:是除過 32768 沒錯 這裡的 sample 值在 matlab 化為 0~104/01 11:23
4F→:而實際存放時是(以你的16-bit)是 0~3276704/01 11:24
5F→:因此在 matlab 就會除過 3276804/01 11:24
3F推:感覺不像歸納法 (雖然由小推大的感覺有像到)03/31 01:10
1F推:當然是不行 第一次沒事只是因為你運氣好03/30 22:54
2F→:置底十三誡之三03/30 22:54
1F推::wq XDDDDDDD03/30 00:14
1F推:你搞錯 auto_increment 的用意了...03/29 16:10
2F→:它只不過就是一個流水號而已 流過了就過了03/29 16:10
3F→:所以不要用它來計數資料庫裡面的資料筆數03/29 16:11
4F→:要知道資料數量時 select count(*) 一下就好03/29 16:11
8F推:那你就不應該做用 auto_increment03/29 23:32
9F→:應該要的是每次插入都去找一次目前的最小空號03/29 23:32
10F→:不過 "46 以上就超過商品的數目" 這句話我覺得你還是沒抓到03/29 23:33
11F→:我說的 "流水號" 的意思03/29 23:33
1F推:用 %lf 讀 double03/29 13:59
7F推:問一下 你的檔案裡是否在數字之前有其他文字?03/29 14:09
8F→:我是指在所有數字的上方03/29 14:09
19F→:原來是 一f 和 Lf...這問題好像很微妙的常見 XD03/29 16:13