“_”称(chēng )为“下划线”1键盘上“0”数字后(hòu )边的按(àn )键2用(yòng )SHIFT键加(jiā )上(shàng )quotquot 就(jiù )可(kě )以(yǐ )在键盘上打出3在英文(wén )输(shū )入状态(tài )下才(cái )能成quot_quot,在(zài )中文(wén )输(shū )入状(zhuàng )态(tài )下(xià )是(shì )“”4下划线大家经常接触到的一(yī )般用在(zài )名字的输入(rù )中,只(zhī )可以
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