根据字符 删除 可变数组、字符串 中的信息

    // 从父字符串中删除子字符串    NSMutableString *sourceString = [NSMutableString stringWithString:@"abcdefghijklmn"];    NSString *delStrFromStr = @"adef";    NSLog(@"sourceString %@", sourceString);        if ([sourceString rangeOfString:delStrFromStr].length > 0) {        [sourceString deleteCharactersInRange:[sourceString rangeOfString:delStrFromStr]];    }    NSLog(@"sourceString %@", sourceString);        // 从父数组中删除某个对象    NSMutableArray *sourceArray = [NSMutableArray arrayWithObjects:@"abc", @"def", @"ghi", @"jklmn", nil];    NSString *delStrFromArr = @"def";    NSLog(@"sourceArray %@", sourceArray);    if ([sourceArray containsObject:delStrFromArr]) {        [sourceArray removeObjectAtIndex:[sourceArray indexOfObject:delStrFromArr]];    }    NSLog(@"sourceArray %@", sourceArray);

内容不只是字符串，自己可以延伸