C语言课后实验答案.doc

C语言课后实验答案.doc・#include<iostream>usingnamespacestd;intmain(){cout«HIamastudent,andIlikeprogramming!n«endl;return0;}X:\Users\Administrator\Desktop\Debug\?Pressanykeytocontinue#include<iostream>usingnamespacestd;intmain(){doublea,b,c;cout«n输入2个数:”;cin»a»b;c=a*b;cout«a«n*n«b«n=n«c«endl;return0;wC:\Users\Administrator\Desktop\Debug\,■ ・|=回 却输人2个数:?67*6=42Pressanykeytocontinue#include<iostream>usingnamespacestd;intmain()chardate[41];cout«endl«H输入日期:”;cin»date;cout«endl«K===========================n«endl;cout«H======================n«endl;return0;输入日期忆28Pressanykeytocontinue#include<iostream>#include<cmath>usingnamespacestd;intmain(){doublea,b,h,s;inti,n;a=-;b=;n=200;h=(b-a)/n;s=(sin(a)+sin(b))/2;for(i=l;i<n;i=i++)s=s+sin(a+i*h);s=s*h;cout«''结果是:H«s«endl;回却return0;T:\Users\Administrator\Desktop\Debug\:8・53549e-017Pressanykeytocontinue#include<iostream>usingnamespacestd;doublearea(doublelength,doublewidth){doublea;a=length*width;returna;}intmain(){cout«H长为3,宽为4的矩形面积是:"vvarea(3,4)vvendl;cout«n输入新的长和宽:doublel,w;cin»l»w;refurn0;•c:\use「s\「ato>De5ktopxDebugxcppl・exe・iis!L#in2-udeciostreamv#indudeAcmafhvusingnamespacesfd;infmain()(doublepbosarea;couf«二郵>akCH二;cinvvavvbvvc;if(a+bcuc--ub--c+bCHa)coutcAwrrordaf巴Aceodl;2-se(s"a+b+c)、2;area=sqrt(s*(s-a)*(s-b)*(s-c));cout«narea=n«area«endl;}return0;}T:\Users\Administrator\Desktop\Debug\'澱 |口|回1 N.■ 且. l 输丿匹』“=345Darea=6■Pressanykeytocontinue2.#include<iostream>#include<cmath>usingnamespacestd;intmain(){doublea,b,c;cout«n输入a,bH;cin»a»b;doublem=fabs(a)+fabs(b);c=sin(m)/aqrt(cos(m));cout«nc=H«c«endI;return0;wC:\Users\Administrator\Desktop\Debug\=回 0输入Jb46c=-l.#INDPressanykeytocontinue8喻人46c=-l.#INDPressanykeytocontinue3・#include<iostream>usingnamespacestd;intmain(){doublea:b,c;cout«n输入3个小数:H«endl;cin»a»b»c;cout«n你输入的3个小数:n«endl;cout«a«b«c«endl;cout«n这3个小数的和是:H«a+b+c«endl;cout«-这3个小数的和按四舍五入方法转化成整数是:u«int(a+b+c+)«endl;return0;纤刖八3I软: