backtest

{
  "version": 1,
  "task": {
    "placeholder": "补充信号文件、回测区间、基准或特殊假设（可选）"
  },
  "fields": [
    {
      "key": "factor",
      "label": "内置因子",
      "type": "select",
      "default": "momentum_20",
      "help": "填写自定义表达式时以表达式为准",
      "options": [
        { "value": "momentum_20", "label": "20日动量" },
        { "value": "reversal_5", "label": "5日反转" },
        { "value": "lowvol_20", "label": "20日低波动" },
        { "value": "alpha101_101", "label": "Alpha101 #101" },
        { "value": "alpha101_12", "label": "Alpha101 #12" },