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我編程在C#中,並定義2產品尺寸陣列:如何決定2維數組有價值?
holidays[1, 1] = "元旦";
holidays[2, 14] = "情人節";
holidays[3, 8] = "婦女節";
holidays[3, 12] = "植樹節";
holidays[4, 1] = "愚人節";
holidays[5, 1] = "勞動節";
holidays[5, 4] = "青年節";
holidays[5, 12] = "護士節";
holidays[5, 14] = "母親節";
holidays[5, 14] = "助殘日";
的價值如何判斷爲空?
holidays[i,j] != string.Empty
在asp.net中沒有效果。