dataadapter的作用 abstract和interface的區(qū)別 SqlDataAdapter具體用法和意義？數(shù)據(jù)集函數(shù)：數(shù)據(jù)集，數(shù)據(jù)適配器讀取數(shù)據(jù)。問：什么是數(shù)據(jù)適配器？答：DataAdapter對象充當(dāng)數(shù)據(jù)集和數(shù)據(jù)字符串strco... 2021-03-11 2904次瀏覽
