Go,Golang：遍历struct
发布时间：2020-12-16 19:03:56 所属栏目：大数据 来源：网络整理
导读：http://play.golang.org/p/fJACxhSrXX 我想遍历一系列结构. func GetTotalWeight(data_arr []struct) int { total := 0 for _,elem := range data_arr { total += elem.weight } return total } 但我得到语法错误 syntax error: unexpected ),expecting { 是
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http://play.golang.org/p/fJACxhSrXX
我想遍历一系列结构. func GetTotalWeight(data_arr []struct) int {
total := 0
for _,elem := range data_arr {
total += elem.weight
}
return total
}
但我得到语法错误 syntax error: unexpected ),expecting {
是否可以遍历结构？
你的功能几乎完全正确.您希望将TrainData定义为类型,并将GetTotalWeight的类型签名更改为[] TrainData,而不是[] struct,如下所示：
import "fmt"
type TrainData struct {
sentence string
sentiment string
weight int
}
var TrainDataCity = []TrainData {
{"I love the weather here.","pos",1700},{"This is an amazing place!",2000},{"I feel very good about its food and atmosphere.",{"The location is very accessible.",1500},{"One of the best cities I've ever been.",{"Definitely want to visit again.",{"I do not like this area.","neg",500},{"I am tired of this city.",700},{"I can't deal with this town anymore.",300},{"The weather is terrible.",{"I hate this city.",100},{"I won't come back!",200},}
func GetTotalWeight(data_arr []TrainData) int {
total := 0
for _,elem := range data_arr {
total += elem.weight
}
return total
}
func main() {
fmt.Println("Hello,playground")
fmt.Println(GetTotalWeight(TrainDataCity))
}
运行这个给出： Hello,playground 13300 （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |