变换大小写 / text.change_case

使用场景 / Purpose

Text: change case. 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
`text`	"string"	必填 Required	`{"minLength": 0, "maxLength": 10000}`
`mode`	"string"	必填 Required	`{"minLength": 0, "maxLength": 10, "enum": ["lower", "upper", "title", "casefold"]}`

输入例子 / Example input

{
  "text": "Summer SALE",
  "mode": "lower"
}

预期输出 / Expected output

"summer sale"

完整输入 JSON Schema

{
  "type": "object",
  "properties": {
    "text": {
      "type": "string",
      "minLength": 0,
      "maxLength": 10000
    },
    "mode": {
      "type": "string",
      "minLength": 0,
      "maxLength": 10,
      "enum": [
        "lower",
        "upper",
        "title",
        "casefold"
      ]
    }
  },
  "required": [
    "text",
    "mode"
  ],
  "additionalProperties": false,
  "maxProperties": 1000
}

完整输出 JSON Schema

{
  "type": "string",
  "minLength": 0,
  "maxLength": 128000
}