前进不能超过 （类型接口{}）

未声明类型时，json包将解码为的默认值为：

bool, for JSON booleansfloat64, for JSON numbersstring, for JSON strings[]interface{}, for JSON arraysmap[string]interface{}, for JSON objectsnil for JSON null

由于

record

map[string]interface{}

for _, record := range view {    log.Printf(" [===>] Record: %s", record)    if rec, ok := record.(map[string]interface{}); ok {        for key, val := range rec { log.Printf(" [========>] %s = %s", key, val)        }    } else {        fmt.Printf("record not a map[string]interface{}: %vn", record)    }}