删除 NSString 的一部分并将其复制到另一个 NSString

发布于 2024-12-02 04:33:11 字数 487 浏览 3 评论 0原文

所以我有一个 NSString，让我们这么说： NSString *mainString = @"My Name is Andrew (I likecomputer)"; 我想从 mainString 中删除从“(”到“)”的所有内容。我想将“()”之间的所有内容放入子字符串中。

例如：

NSString *mainString = @"My Name is Andrew (I like computers)";
NSString *subString;

//The code I need help with

mainString = @"y Name is Andrew ";
subString = @"I like computers";

我希望这是有道理的。这真的会对我有帮助。提前致谢。我一直在使用 NSRange 和 NSMutableStrings 但遇到了麻烦。提前致谢。

原文

So I have an NSString, lets say it: NSString *mainString = @"My Name is Andrew (I like computers)";
And I want remove everything from the "(" to the ")" from mainString. And I want to put everything in between the "()" into a subString.

For example:

NSString *mainString = @"My Name is Andrew (I like computers)";
NSString *subString;

//The code I need help with

mainString = @"y Name is Andrew ";
subString = @"I like computers";

I hope this makes sense. It would really help me. Thanks in Advance. I've been playing with NSRange and NSMutableStrings but I'm having trouble. Thanks in advance.

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蹲墙角沉默 2024-12-09 04:33:11

int startPosition = [mainString rangeOfString:@"("].location + 1;
int endPosition   = [mainString rangeOfString:@")"].location;

NSRange range = NSMakeRange(startPosition, endPosition - startPosition);

NSString *subString = [mainString substringWithRange:range];

正如 darvids0n 在下面的评论中提到的：

    mainString = [mainString substringToIndex:startPosition - 1]

int startPosition = [mainString rangeOfString:@"("].location + 1;
int endPosition   = [mainString rangeOfString:@")"].location;

NSRange range = NSMakeRange(startPosition, endPosition - startPosition);

NSString *subString = [mainString substringWithRange:range];

and as darvids0n has mentioned in below comment:

    mainString = [mainString substringToIndex:startPosition - 1]

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寒尘 2024-12-09 04:33:11

这可能是一个更简单的方法：

NSString *mainString = @"My Name is Andrew (I like computers)";
NSString *subString;

NSArray *array = [mainString componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"()"]];

mainString = [array objectAtIndex:0]; // "My Name is Andrew "
subString = [array objectAtIndex:1]; // "I like computers"

This is probably an easier way:

NSString *mainString = @"My Name is Andrew (I like computers)";
NSString *subString;

NSArray *array = [mainString componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"()"]];

mainString = [array objectAtIndex:0]; // "My Name is Andrew "
subString = [array objectAtIndex:1]; // "I like computers"

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