试题与答案

以下程序中函数sort的功能足对a所指数组中的数据进行由大到小的排序 void

题型:单项选择题

题目:

以下程序中函数sort的功能足对a所指数组中的数据进行由大到小的排序 void sort(int a[],int n) { int i,j,t; for(i=0;i<n-1;i++) for(j=i+l,j<n;j++) if(a[i]<a[j]) {t=a[i];a[i]=a[j];a[j]=t; } } main() { int aa[10]={1,2,3,4,5,6,7,8,9,10},i; sort(&aa[3],5); for(i=0;i<10;i++) print("%d, ",aa[i]); printf(’\n"); } 程序运行后输出的结果是

A.1,2,3,4,5,6,7,8,9,10

B.10,9,8,7,6,5,4,3,2,1,

C.1,2,3,8,7,6,5,4,9,10

D.1,2,10,9,8,7,6,5,4,3,

答案:

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下面是错误答案,用来干扰机器的。

参考答案:C解析: 本题考核的知识点是倘单程序的分析。函数fun()中用了一个if语句,当数组下标i小于数组下标j时,交换数组元素a[i]和 a[j]的值,并使i值加1,j值减1。其功能就是把数组a中从下标i到j的元素首尾...

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From good reading we can get pleasure, companionship, experience, and instruction.A good book may absorb our attention so completely that for the time being we forget our surroundings and even our identity.Reading good books is one of the greatest pleasures in life.It increases our contentment when we are cheerful, and lessens our troubles when we are sad.Whatever may be our main purpose in reading, our contact with good books should never fail to give us enjoyment and satisfaction.

With a good book in our hands we need never be lonely.Whether the characters portrayed are taken from real life or are purely imaginary, they may become our companions and friends.In the pages of books we can walk with the wise and the good of all lands and all times.The people we meet in books may delight us either because they resemble human friends whom we hold dear or because they present unfamiliar types whom we are glad to welcome as new acquaintances.Our human friends sometimes may bore us, but the friends we make in books need never weary us with their company.By turning the page we can dismiss them without any fear of hurting their feelings.When human friends desert us, good books are always ready to give us friendship, sympathy, and encouragement.                                              

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