package helper import "os" const ( DefaultTimeZone = "Asia/Shanghai" // 时区 ) func GetEnv(name string) string { return os.Getenv(name) } func GetEnvWithDefault(name string, defaultValue string) string { value := GetEnv(name) if value == "" { return defaultValue } return value } func GetTimeZone() string { return GetEnvWithDefault("TZ", DefaultTimeZone) }