解析 正确答案:8,20 解析:本题考查while循环和++运算符的运用。x=O符合条件x<15,则执行y++,x+=+y后,y=1,x=0+2=2后y=2,符合条件继续循环,y=3,x=x+4=6后y=4,再循环y=5,x=x+6=6+6=12后,y=6,继续循环y=7, x=x+8=12+8=20,此时y=8。
Pei, Y. Su Working mechanism and failure analysis of check valves of BOP(blowout preventer)system in drilling string for safe drilling Nat. Gas. Ind., 30 (2010), pp. 69-72 View in ScopusGoogle Scholar Chen, 2015 X. Chen Study of Downhole Annulus BOP Rubber Cylinder Sealing Performance ...
x+=++y得到y=2,x=2 第二次循环 y++得到y=3 x+=++y得到y=4,x=6 第三次循环 y++得到y=5 x+=++y得到y=6,x=12 第四次循环 y++得到y=7 x+=++y得到y=8,x=20 循环结束
x = 12时，执行y++后，y = 7，执行x += ++y后，y = 8，x = 20 不满足x < 15，退出循环，故输出是8,20
Abstract The germline is the only cellular lineage capable of transferring genetic information from one generation to the next. Intergenerational transmission of epigenetic memory through the germline, in the form of DNA methylation, has been proposed; however, in mammals this is largely prevented by ...
执行语句x=y=0; while (x<15) y++,x+=++y;printf(“%d,%d”,y,x);的结果是( )。A.20,7B.6,12C.20,8D.8,20的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学职业搜题找答案,刷题练习的工具.一键将文档转化为在线题库手机刷题,以提高学习效率,是学习
15. 16. 17. 18. 19. 20. 3、循环语句可以有 else 子句,它在穷尽列表(以for循环)或条件变为 false (以while循环)导致循环终止时被执行,但循环被break终止时不执行。 eg: for num in range(2,10): for x in range(2,num): if(num % x ==0): ...
While作为并列连词，意思为而，然而，表前后意义上的对比或转折。(x=y)5是5X=5Y是一个数学方程式。
运算符||是逻辑或。以上语句变量x、y、z中任意一个或多个值不为0时，继续循环。
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