go - 为什么我在此代码中的函数末尾缺少返回值？

Question

func getKeyNameFromDeploymentAndSubnet(subnetType SubnetType, deploymentType DeploymentType, keyNameMap map[SubnetType]string) string {
    if (deploymentType == NoDeployment || deploymentType == PDBAWindows || deploymentType == AgentDeployment) {
        return keyNameMap[subnetType]
    }
    else if (deploymentType == AnsibleDeployment) {
        return "bar"
    }
    return "foo"
}

在第一个 if 语句中，我得到一个函数错误结尾缺少返回值的错误。如果删除 else if 语句，我不会收到此错误。我哪里错了？

Answer 1

您收到此错误是因为 else 语句必须与第一个条件的结束 } 在同一行。

func getKeyNameFromDeploymentAndSubnet(subnetType SubnetType, deploymentType DeploymentType, keyNameMap map[SubnetType]string) string {
    if deploymentType == NoDeployment || deploymentType == PDBAWindows || deploymentType == AgentDeployment {
        return keyNameMap[subnetType]
    } else if deploymentType == AnsibleDeployment {
        return "bar"
    }
    return "foo"
}