此符(fú )号(hào )需(xū )要(yào )在(zài )英(yīng )文状态下(xià )输入(rù ),操(cāo )作步骤如(rú )下第一(yī )步(bù )点击(jī )键(jiàn )盘上(shàng )的减号(hào )按钮,显示符号为(wéi )“”第二步(bù )依旧(jiù )是减(jiǎn )号按钮(niǔ ),同(tóng )时按住shift键,可打(dǎ )出符号“_”第三步选择小于号所(suǒ )在的按钮,可(kě )打出符号“,”合在一起后
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