我希望检测一个数字何时是4的倍数。如果不是,我考虑使用for循环将该数字相加,直到它是4的倍数。因此,类似于以下内容(在javascript中): for (var i=0;<confused about what condition to put here>; i+=1) { return number += i; /
update table set number2 = number where number != "" and set number, number2 = $number where number="";update table set number2 = number wherenumber != "";
update table set