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ΪʲôҪѧϰʹLINQ

Ҫ֪Linq Щ֪ʶ,аٶ; ԼϵIJѯ,ɸѡ,,µĶ ϵӲѯ Linq to SQL ,ԽSQLѯȲ, ԺԲͬݿ֮IJ; Ҫ֪ܶ˲sql,˵ͬݿsql...

˵ǼҲҪɣ mvcֻһģʽǿҪЩ ҪǸе߼ϵ

Whats LINQ? Language Integrated Query Ҳ˵һЩDZԵһԣܹݲѯ伯ɵСĿǰLINQֵ֧C# VBΪɶLINQҪΪڵݸʽԽԽ࣬ݿ⡢XML顢...

оٵЩؼʣһ֣ȫ潲Щ LINQûݿ⣬ʵûҪȥѧ lamdbaṩʽԣ֧ormϵӳ䣩 wcfwebһ֣и߼׶βŻõ wpf/silver...

һҪŪ鼮ڰٶĿһЩϣ󲿷ֶ鼮ĵʽPPTμ֮ģҲѧϰLinqǰʹĿصģ֪ʶȫ棬ORMûоĿҲ԰æɣ

public void ToSql1() { string connectsql = "server=.\\SQLEXPRESS;database=test;uid=zy;pwd=zy;";//sql ֤ string connectwin = "server=.\\sqlexpress;database=test;integrated security=true;";//windows ֤ DataContext d = new Dat...

linqǿʵjoinġ磺var query = from c in customers join o in orders on c.CustomerId equals o.CustomerId where o.OrderId == 2 select c;

LinqLinq to DataSetIJ֣򵥽LinqC#õһֲѯ䣬ʵʹõLinq to DataSetתEnumerable.SelectMany().OrderBy()ģôLinq to ObjectIEnumerableLinq to DataSet...

num / 10 == 0 Ϊnumһ,õĽ,ȥ.ıʽ൱ȡnumʮλϵIJ.ᶪ. num / 10 == 0 ȼ numֻиλ. (-9..9) numĻ,ҲȼС10. (0-9)

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