api 的 json 響應(yīng)是這樣的{ "ResponseCode": "1", "Response": "Data Found", "data": [ { "Season": "KHARIF", "Sector": "AGRICULTURE", "Category": "Cereals", "Crop": "Paddy (Dhan)", "QueryType": "\tField Preparation\t", "QueryText": "top dressing for paddy", "KccAns": "top dressing for paddy : apply urea 25kg+SSP 15kg + neem cake 5kg+MN mixture 5kg mixed with 40kg of sand", "StateName": "PUDUCHERRY", "DistrictName": "KARAIKAL", "BlockName": "KARAIKAL", "CreatedOn": "1/5/2014 6:48:09 PM" }, { "Season": "KHARIF", "Sector": "AGRICULTURE", "Category": "Others", "Crop": "Others", "QueryType": "Weather", "QueryText": "weather forecasting details", "KccAns": "today no rain", "StateName": "PUDUCHERRY", "DistrictName": "KARAIKAL", "BlockName": "KARAIKAL", "CreatedOn": "1/5/2014 9:04:50 PM" }, { "Season": "KHARIF", "Sector": "AGRICULTURE", "Category": "Others", "Crop": "Others", "QueryType": "0", "QueryText": "details about soil testing", "KccAns": "contact to agricultural department", "StateName": "PUDUCHERRY", "DistrictName": "KARAIKAL", "BlockName": "KARAIKAL", "CreatedOn": "1/8/2014 10:21:18 AM" }, { "Season": "KHARIF", "Sector": "AGRICULTURE", "Category": "Cereals", "Crop": "Paddy (Dhan)", "QueryType": "Fertilizer Use and Availability", "QueryText": "paddy top dressing fertilizer", "KccAns": "apply urea 25 kg + potash 15 kg + neem cake 5 kg + microfood 5 kg / ac", "StateName": "PUDUCHERRY", "DistrictName": "KARAIKAL", "BlockName": "KARAIKAL", "CreatedOn": "1/12/2014 8:01:45 AM" } ]}我正在嘗試編寫一個(gè) golang 模板，它僅返回響應(yīng)對(duì)象數(shù)據(jù)部分中的前兩個(gè)數(shù)據(jù)點(diǎn)。{{range $element := .data}} {{$element}} {{end}}這是我目前正在使用的模板，但這會(huì)返回 .data 字段中的所有子數(shù)據(jù)。我怎樣才能進(jìn)行這個(gè)鍛煉。
1 回答
RISEBY
TA貢獻(xiàn)1856條經(jīng)驗(yàn) 獲得超5個(gè)贊
您可以使用slice模板函數(shù)獲取前兩個(gè)元素。例子：
{{$dataSliced := slice .data 0 2}}
{{range $element := $dataSliced}}
? ? {{$element}}
{{end}}
或者您也可以為切片創(chuàng)建自定義模板函數(shù)。
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