C++第四次实验课后作业.docx

第四周课后作业代码练习：（只书写主要代码，变量定义、预处理命令等可省略）编写一个do/while循环来对10~0向下计数。int i=10;doi--;while (i0);couti/nendl;编写一段while循环程序，计算1~10间除3和6之外的所有整数的和。并将结果打印出来。#includeiostreamusing namespace std;int main(){int n,sum;n=1;sum=0;while(n=10){ while(n==3||n==6){n++;}sum=sum+n; n++;}coutsum=sum\n;return 0;}编写一个for循环程序，打印1~100间的所有奇数。程序输出练习：阅读以下程序代码段，写出程序的输出结果（注意，请勿在计算机上执行程序!）.以下程序段的输出结果是什么？int grade1 = 65;int grade2 = 55;cout“The student with a grade of “ grade1 ”“( grade1= 60 ? “Passed\n” :“Failed\n” );cout“The student with a grade of” grade2 ”“( grade2= 60 ? “Passed\n” :“Failed\n” );答:The student with a garde of65passedThe student with a grade of55failed以下程序段的输出结果是什么？for ( int i = 1; i = 10; i++ ) {switch ( i ) {case 1 ：cout“The value of x is 1\n”;break;case 4 :cout”The value of x is 4\n”;case 6:cout“The value of x is 6\n”;break;default:cout“The value of x is neither 1, 4 nor 6\n”;}}答：The value of x is 1The value of x is neither 1, 4 nor 6The value of x is neither 1, 4 nor 6The value of x is 4The value of x is 6The value of x is neither 1, 4 nor 6The value of x is 6The value of x is neither 1, 4 nor 6The value of x is neither 1, 4 nor 6The value of x is neither 1, 4 nor 6The value of x is neither 1, 4 nor 6以下程序的输出结果是什么？int x = 1;while ( x = 5 ) {x++;cout“The value of x is: “ x endl;}cout“The final value of x is: “ x endl;答:The value of x is：2The value of x is：3The value of x is：4The value of x is：5The value of x is：6The final value of x is：6下面的for循环的输出是什么？for ( int i = 0; i 5; i++ )cout i ““;答:01234以下程序段的输出是什么？int x = 1;for ( ; x = 10; x++ ) ;cout“The value of x is: “ x endl;答:The value of x is:11程序调试题：利用Visual C++开发环境对程序进行调试，使程序运行正确。以下程序用来找a，b，c之间的最大数largest，最小数smallest和中间的数middle#include iostream#include iomanipusing namespace std;int main(){int a, b, c, largest,x;cinabcendl;x=(ab)?a:b;largest=(xc)?x:c;int smallest;x=(ab)?a:b;smallest=(xc)?x:c;int middle;if (a!=largest a!=smallest)middle=a;if (b!=largest b!=smallest)middle=b;if (c!=largest c!=smallest)middle=c;coutlargest mid