摘要：
+ plus 加号；正号 - minus 减号；负号 ± plus or minus 正负号 × is multiplied by 乘号 ÷ is divided by 除号 ＝ is equal to 等于号 ≠ is not equal to 不等于号 ≡ is equivalent to 全等... 阅读全文
cstareli's docs |
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摘要：
+ plus 加号；正号 - minus 减号；负号 ± plus or minus 正负号 × is multiplied by 乘号 ÷ is divided by 除号 ＝ is equal to 等于号 ≠ is not equal to 不等于号 ≡ is equivalent to 全等... 阅读全文
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