如果我有线上号码和栏号,那么能否轻易地将插图指数列入国家数据库?
例如:
abc
def
ghi
[myString RecIndexFromLineNumber:2栏Number:1]应退还我的编码中h的索引,例如,该索引应为10(假设新线为1 char long)。
There is no default way to do this, so you re going to have to write a category for NSString. Take a look at NSScanner, it will help you quite a bit.
<>印本>:
Wrap the Code in the methods in a while (![scanner is AtEnd]) to ensure scanning through the string in a loop.
使用<代码>[扫描仪扫描到ToCharactersFromSet:[NSCharacterSet letterCharacterSet] 进入String:NUL]和[scanner scanCharactersFromSet:[NSCharacterSet newlineCharacterSet] 进入String:NUL] 绕过一条线(在你到达你想要的线、读到现在的线和返回特定特性之前坚持这样做)。
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