摘要:
NSString *text = @"i'm a 苹果。...";int length = [text length];for (int i=0; i<length; ++i){NSRange range = NSMakeRange(i, 1);NSString *subString = [text substringWithRange:range];const char *cString = [subString UTF8String];if (strlen(cString) == 3){NSLog(@"汉字:%s", cString); 阅读全文