沒什麼好說的,因為用的到,所以作個記錄,
**如下:
using執行截圖:system;
using
system.collections.generic;
using
system.linq;
using
system.text;
using
system.threading.tasks;
namespace
consoleme
));
foreach (var item in
ls)
console.writeline(""
); console.writeline(
"liqn分組如下:");
var ls2 = from ps in
persons1
group ps by ps.***
into g
select
new ;
foreach (var item in
ls2)
console.read();}}
public
class
person
public
int age
public
string ***
public
int money
public person(string name, string ***, int age, int
money)}}
後續...
敬請期待...
如果是多列/多個屬性參與分組應當如何呢?
**如下:
namespace未完,持續...test2
).select(g => (new ));
foreach (var item in
ls)
console.writeline(""
); console.writeline(
"liqn多屬性/多列分組如下:");
var ls2 = from ps in
persons1
group ps by
new into g
select
new ;
foreach (var item in
ls2)
console.read();}}
public
class
person
public
int age
public
string ***
public
int ***id
public
int money
public person(string name, string ***, int age, int money, int
***id)
}public
class
persongroup
public
int ***id
public listpersonls
}public
class
newperson
public
int age
public
int money }}
敬請期待...
也可通過nuget獲取
namespace以上**適用於:一對多的類對映consoleme
).select(g => (new ));
foreach (var item in
ls)
console.writeline(""
); console.writeline(
"liqn多屬性/多列分組如下:");
var ls2 = from ps in
persons1
select
new ;
var kar = ls2.groupby(g => new ).select(s => new );
//使用automap 將 kar 對映到對應的類
foreach (var item in
alllist)
}var data =kar.tolist();
console.read();}}
public
class
person
public
int age
public
string ***
public
int ***id
public
int money
public person(string name, string ***, int age, int money, int
***id)
}public
class
persongroup
public
int ***id
public listpersonlist
}public
class
newperson
public
int age
public
int money }}
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