let
get_data = (page)=>
let
url="https://www.howbuy.com/fund/valuation/ajax.htm",
headers=[#"Content-Type"="application/x-www-form-urlencoded;Referer=https://www.howbuy.com/fund/valuation/index.htm"],
content="orderType=true&page="&Text.From(page)&"&allowGM=false"&"isOptional=false",
data=Table.FromRecords(Json.Document(Web.Contents(url,[Headers=headers,Content=Text.ToBinary(content)]))[list])
in
data,
result = Table.Combine(List.Transform({1..1},get_data))
in
result
如上代码所示,我想要在Table.FromRecords中选择date,jjdm,jjjc,jjjz,netValue,preJjjz这几列,其他列我要排除掉,请问Table.FromRecords中怎么实现呢