objective-c - 如何在 NSMutableString 中修剪 ""和 "\n"

Question

如何修剪 NSMutableString 中的“”和“\n”？

Answer 1

NSCharacterSet* charsToTrim = [NSCharacterSet characterSetWithCharactersInString:@" \n"];
NSString* trimmedStr = [aStr stringByTrimmingCharactersInSet:charsToTrim];