substring

path.substring(6, path.length())
sb.Substring(0, sb.Length - 1);这个是截取字符串的方法，
后面第一个参数0代表，从字符串的第一个字符开始截取，
后面一个参数sb.Length - 1代表截取的字符串长度，
也就是从第一个字符截取到最后一个字符前一位。
其实这里所有代码是这个意思，你在上面做了字符串拼接，
把所有找到的Text，按照Text后面加逗号形式拼接，例如你拼接book和map，
拼接的结果就是book，map， 最后多了一个逗号，所以你通过截取字符串
方法去掉最后一个逗号，达到你的目标

时间： 2024-10-25 20:06:52

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