A:显然应该让未确定的大小尽量大。不知道写了啥就wa了一发。 #include<iostream>
#include<cstdio>
#include<cmath>
#include<cstdlib>
#include<cstring>
#include<algorithm>
using namespace std;
#define ll long long
#…
sqlserver 使用case when then 语句来实现 select name from fruit
order by case namewhen Strawberry then 1when Banana then 2when Apple then 3else 4
end oracle 使用decode实现 select * from table_example order by decode(class,C,1,A,2,D,3,B,4) 转载于:https://www…