If the first argument is not negative, no sign character appears in the result.

如果第一个参数不为负，结果中不会出现符号字符。

youdao

The Unicode character copyright sign character 0xA9 = 1010 1001 is encoded in UTF-8 as

Unicode 字符版权标记字符 0xA9 = 1010 1001 用 UTF-8 编码如下所示

youdao

The "e", "e -", "e", or "e -" formats indicate that a sign character should only precede negative exponents.

或“e -”格式指示符号字符仅置于负指数前面。

youdao

And they may be just saying that to make me feel better, which, again, is a sign of their character and their class.

WHITEHOUSE: Presidential Press Conference

Americans are not only overwhelmingly religious 92% say they believe in God and 63% believe that the Bible is the word of God but they also believe that religiousness is a sign of good character.

ECONOMIST: Lexington

Girls sign up, they start out with a nude virtual character and they compete against other girls to earn so-called "bimbo dollars" so they can buy these virtually sexy outfits and go out clubbing.

NPR: Auctioning a Nude Pic of France's First Lady