如题
What does the ceil() function mean? -PHP Chinese website Q&A-What does the ceil() function mean? -PHP Chinese website Q&A
Please watch and learn.
你这样想把 ceil在英文里是天花板的意思 floor在英文里是地板的意思。所以 Math.ceil() 就是对一个数向上取整，Math.floor()就是对一个数向下取整 比如 $a = 3.76; $b = Math.ceil($a) $b = 4 ; $c = Math.floor($a); $c = 3;
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What does the ceil() function mean? -PHP Chinese website Q&A-What does the ceil() function mean? -PHP Chinese website Q&A
Please watch and learn.
你这样想把 ceil在英文里是天花板的意思 floor在英文里是地板的意思。所以 Math.ceil() 就是对一个数向上取整，Math.floor()就是对一个数向下取整 比如 $a = 3.76; $b = Math.ceil($a) $b = 4 ; $c = Math.floor($a); $c = 3;