QStringList.size返回两个值

Question

在我的代码的这一部分，我想返回我的QStringList的大小

QStringList Attribute;
int tableSize = 0;


    QString string= reply->readAll();
    QRegExp expretion("[{}]");

    Attribute = string.split(expretion);
    tableSize = Attribute.size();
    qDebug()<<tableSize;

qDebug()<<tableSize;这将返回两个值（1和7）

字符串

的值

[
  {
    "idInstallation": 10,
    "tstId": 1,
    "knockPerTest": 10,
    "description": "aaaaaaaaaaaaaaaaaaaa",
    "state": "1",
    "dateCreation": "2019-07-09T12:46:00",
    "dateStart": "2019-07-09T12:46:00",
    "datePause": "2019-07-09T12:46:00",
    "dateStop": "2019-07-09T12:46:00"
  },
  {
    "idInstallation": 10,
    "tstId": 2,
    "knockPerTest": 20,
    "description": "bbbbbbbbbbbbbbbbbbb",
    "state": "1",
    "dateCreation": "2019-07-09T12:46:00",
    "dateStart": "2019-07-09T12:46:00",
    "datePause": "2019-07-09T12:46:00",
    "dateStop": "2019-07-09T12:46:00"
  },
  {
    "idInstallation": 10,
    "tstId": 3,
    "knockPerTest": 30,
    "description": "ccccccccccccccccccccc",
    "state": "1",
    "dateCreation": "2019-07-09T12:46:00",
    "dateStart": "2019-07-09T12:46:00",
    "datePause": "2019-07-09T12:46:00",
    "dateStop": "2019-07-09T12:46:00"
  }
]

我使用 split 的目标是分离我得到的jason记录。 例如

Attribute = json.split(expretion);

我找不到错误

当我打印到控制台时，它将返回以下值：