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math.round_decimal

十进制四舍五入

Round a plain decimal string using ROUND_HALF_UP and return fixed fractional digits.

Version 1.0.0确定性数据处理Backend required

使用场景 / Purpose

Math: round decimal. 本技能对提供的参数执行计算,输入输出契约如下。文档例子来自已实现函数的固定验收样例;网页本身不执行代码。

输入字段 / Parameters

字段类型要求约束与说明
value"string"必填 Required{"minLength": 1, "maxLength": 32}
places"integer"必填 Required{"minimum": 0, "maximum": 8}

输入例子 / Example input

{
  "value": "2.675",
  "places": 2
}

预期输出 / Expected output

"2.68"
完整输入 JSON Schema
{
  "type": "object",
  "properties": {
    "value": {
      "type": "string",
      "minLength": 1,
      "maxLength": 32
    },
    "places": {
      "type": "integer",
      "minimum": 0,
      "maximum": 8
    }
  },
  "required": [
    "value",
    "places"
  ],
  "additionalProperties": false,
  "maxProperties": 1000
}
完整输出 JSON Schema
{
  "type": "string",
  "minLength": 0,
  "maxLength": 128000
}