=IF($B7="","",SUM(N(COUNTIF(AO7:BU7,B7:G7)>0)))这公式有什么错?请尽快i回复.

=IF($B7=,,SUM(N(COUNTIF(AO7:BU7,B7:G7)>0)))这公式有什么错?请尽快i回复. =IF(B7=SUM(C7:D7),t,f)这是检验excl表格中数据的公式, sum+=n;是什么意思 请问这个IF函数公式的错误在哪里?=IF(B7=H-CARRY,,IF(((B7=TRUCK)+(B7=AIR)+(B7=DHL)+(B7=FEDEX)+(B7=SEA FCL)*(G7-E7) 求问 =if($b7=,,vlookup($b7,ind!b:g,4,false)) 求问 =if($b7=,,vlookup($b7,ind!b:g,4,false)) 求简化EXCEL公式=IF($A$1=1,B3,IF($A$1=2,SUM(B3:B4),IF($A$1=3,SUM(B3:B5),IF($A$1=4,SUM(B3:B6),IF($A$1=5,SUM(B3:B7),0)))))这个公式目的是根据$A$1的数字,统计b行若干顺序单元格的值,我笨,只会if,有没有更好的方法 matlab 求亮度 程序,看不懂,function B=Brightness(Y)[m,n,d]=size(Y);b=0;if d==1B=sum(Y(:))/(m*n);endif d==3B(1)=sum(sum(Y(:,:,1)))/(m*n);B(2)=sum(sum(Y(:,:,2)))/(m*n);B(3)=sum(sum(Y(:,:,3)))/(m*n);end =IF(SUM(A1:A5)>0,SUM(A1:A5) 求问 =if($b7=,,vlookup($b7,ind!b:g,4,false)) 用C++编写程序：计算并输出∑（2n+1)超过1000的第一个n值（n从1开始）.#includestdio.hvoid main(){ int n=1,sum=0;for(;;n++) {sum=sum+_____;if(________)break;}printf(n=%d,sum=%d ,n,sum);}补充空白处 IF(VALUE(RIGHT(B7,1))=0,B6,IF(VALUE(LEFT(B7,1))/VALUE(RIGHT(B7,1))>1,B6,B10)),是啥意思啊. 求0+1+2+3+…+n的值.#includeusing namespace std;void main(){int i,sum=0,n;coutn;for(i=0;;i++){sum=sum+i;if(i>n)break;}cout 在Excel中,函数引用正确的是?A=(sum)A1:A5 B=sum(A2,B3,B7) C=sum A1:A5 D=sum(A10,B5:B10:28) sum+=n * factorial(n-1); 这一步函数递归调用的思路int factorial(int n){int sum=0;if(n==1)sum=1;elsesum+=n * factorial(n-1);return sum;}void main(){int i=5;printf(5's factorial is %d ,factorial(i));} C语言计算1+2+3+···+100我用的以下语句main (){int sum=0,i=0;for (;;){i=i+1;sum=sum+i;if (i=100)break;}printf (sum=%d ,sum);getch ();}为什么输出的结果是 sum=1哪里错了呢 c++计算20以内的奇数和#include void main(){int n,sum;for(n=1;;n+=2);sum+=n;if(n==21)break;cout 下面事件过程的功能是：输入n的值,求sum=1+2+…+n的值,在横线上填上适当的内容Private Sub Command1_Click() Dim n%,i%,sum& n=InputBox(n=) i=1:sum=0 20:If i>n Then GoTo 10Else (1)i=i+1 (2) End If 10:Print sum=; sum End Sub 怎么把excel里的列A里的每四行求和一次把值放到b列中以从A1开始到A12结束为例子：b1=sum(a1:a4),b2=sum(a1:a4),b3=sum(a1:a4),b4=sum(a1:a4),b5=sum(a5:a8),b6=sum(a5:a8),b7=sum(a5:a8),b8=sum(a5:a8),b9=sum(a9:a12),b10=sum(a9:a12)