嗨,我有一个这样的字符串
NSString *str=@"1,2,3,4";
我必须动态删除任何字符。例如,@"3,"
。
NSString *str=@"1,2,3,4";
[str stringByReplacingOccurrencesOfString:@"3," withString:@""];
这将删除str
中所有出现的@“3”。
如果您只想删除第一次出现的@“3”,:
NSString* str = @"1,2,3,4";
NSRange replaceRange = [str rangeOfString:@"3,"];
if (replaceRange.location != NSNotFound){
NSString* result = [str stringByReplacingCharactersInRange:replaceRange withString:@""];
}
希望这可以帮助。
NSString *str=@"1,2,3,4";
int numberToRemove = 4;
str = [str stringByReplacingOccurrencesOfString:[NSString stringWithFormat:@"%d",numberToRemove] withString:@""];
str = [str stringByReplacingOccurrencesOfString:@",," withString:@","];
这会有所帮助。