performance function的用法和樣例：
例句
- To help deal with the string, including the code conversion function.
字符串處理幫助，包括編碼轉換等功能函數。 - The maximum number of supported Modbus functions must be greater than the sum of all enabled functions in this file and custom function handlers.
這個(gè)最大值要大于所有使能的功能函數和用戶(hù)功能處理函數的總和。
