如何在亚马逊DynamoDB Go软件开发工具包中使用begins_with

import (
    "github.com/aws/aws-sdk-go/aws"
    "github.com/aws/aws-sdk-go/aws/session"
    "github.com/aws/aws-sdk-go/service/dynamodb"
)

sess := session.Must(session.NewSessionWithOptions(session.Options{
    SharedConfigState: session.SharedConfigEnable,
}))
svc := dynamodb.New(sess)

input := &dynamodb.QueryInput{
    TableName: aws.String("YourTableName"),
    KeyConditionExpression: aws.String("YourPartitionKey = :pk and begins_with(YourSortKey, :sk)"),
    ExpressionAttributeValues: map[string]*dynamodb.AttributeValue{
        ":pk": {
            S: aws.String("YourPartitionKeyValue"),
        },
        ":sk": {
            S: aws.String("YourSortKeyPrefix"),
        },
    },
}

result, err := svc.Query(input)
if err != nil {
    // 处理错误
    return
}

for _, item := range result.Items {
    // 处理每个项目
    // item是一个map[string]*dynamodb.AttributeValue，可以通过item["AttributeName"].S获取属性的字符串值
}