字符串函数用于将一个字符串转换为整型数字。
The parseInt function parses a string and returns an integer.
使用基于字符的函数可以解决将字节位置返回为字符位置的问题。
The problem of byte positions being returned for the character positions can be solved using character-based functions.
一些函数的输入是数值,比如字符串函数的起始、长度和偏移量参数。
For some functions, a numeric value is input, for example start, length, and offset parameters of string functions.
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