iOS 截取字符串中的所有汉字- (NSString *)getAStringOfChineseWord:(NSString *)string { NSMutableArray *array

- (NSString *)getSimpleChineseWithString:(NSString *)string
{
    NSMutableArray *array = [NSMutableArray array];
    for (int i = 0; i < string.length; i++) {
        int a = [string characterAtIndex:i];
        if (a < 0x9fff && a > 0x4e00) {
            [array addObject:[string substringWithRange:NSMakeRange(i, 1)]];
        }
    }
    return [array componentsJoinedByString:@""];
}