填空题 编制一个求方阵A(N,N)两条对角线元素之和的程序。将程序补充完整。 Dimension a(10.10) For i=l to 10 For j=l to 10 A(1,j)=rand().18 {{U}} [8] {{/U}} {{U}} [9] {{/U}} for i=1 to 10 for j=l to 9 77str(a(I,j),6,2) 99”,” endfor ??str(a(10),6,2) {{U}} [10] {{/U}} endfor store()to s1,s2 for I=1 to 10 s1=s1+a(1,1) endfor ?”sum=”,s1 {{U}} [11] {{/U}} s2=s2+a(I,10-I+1) {{U}} [12] {{/U}} ?”sum2=”,s2
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【正确答案】 1、[8] endfoy    
【答案解析】[9] endfor [10] ? [11] for I=1 to 10 [12] endfor