• Note: To extract characters from the end of the string, use a negative start number.

    注意字符尾部开始字符负数做为起始字符。

    youdao

  • For example, you can convert the string "1234" to a number.

    例如可以将“1234”字串转换一个数字。

    youdao

  • And it boils down to modifying the format string with just a simple number.

    归结于是个简单的数字来,修改字符串格式

    youdao

  • Some types of conversions, such as from a string to a number, are time-consuming.

    有些转换类型十分耗费时间,例如串转换数字

    youdao

  • Note: To extract characters from the end of the string, use a negative start number.

    注意字符末尾开始选取字符一个起始

    youdao

  • Note: To extract characters from the end of the string, use a negative start number.

    注意字符末尾开始选取字符一个起始

    youdao

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