iOS 字符串截取、iOS 字符串替换、iOS 字符串分隔、iO

iOS之字符串截取、iOS 字符串替换、iOS字符串分隔、iOS之字符串匹配、截取字符串、匹配字符串、分隔字符串

1.iOS 字符串截取

NSString*string =@"123456d890";

NSString*str1 = [string substringToIndex:5];//截取掉下标5之前的字符串

NSLog(@"截取的值为：%@",str1);

NSString*str2 = [string substringFromIndex:3];//截取掉下标3之后的字符串

NSLog(@"截取的值为：%@",str2);

2.iOS 字符串替换

NSString*strUrl = [urlString stringByReplacingOccurrencesOfString:@";"withString:@"."];

ios 根据字符串下坐标替换某段字符

NSString*idCard = [Str stringByReplacingCharactersInRange:NSMakeRange(2,6) withString:@"XXXXXXXXX"];

3.iOS 字符串分隔,分隔字符串

NSString*string =@"1234567";

NSArray*array = [string componentsSeparatedByString:@"4"];//从字符A中分隔成2个元素的数组

NSLog(@"array:%@",array);//结果是123和567

5.iOS 字符串匹配,匹配字符串

NSString*string =@"1234567";

NSRangerange = [string rangeOfString:@"45"];//匹配得到的下标

NSLog(@"rang:%@",NSStringFromRange(range));

string = [string substringWithRange:range];//截取范围内的字符串

NSLog(@"截取的值为：%@",string);