c++部分代码.docxVIP

部分作业的参考代码C++?作业输入一个字符，将其对应的ASCII码值输出#includeiostreamusingnamespace std;int main(){char c;int i; cout请输入一个字符:; cinc; i=c; cout字符 c 的 ASCII 为：iendl;return0;}输入一个小写字母，将其转换为大写字母后输出。#includeiostreamusingnamespace std;int main(){char c1,c2; cout请输入一个小写字母; cinc1; c2=c1-(a-A); cout对应的大写字母为:c2;return0;}输入华氏温度，输出摄氏温度: C=5/9(F-32)#includeiostreamusingnamespace std;int main(){double f,c; cout请输入华氏温度:; cinf; c =5.0*(f-32)/9; cout对应的摄氏温度为：cendl;return0;}输入两个数，将其值交换后输出。#includeiostreamusingnamespace std;int main(){int a,b; cout请输入两个数据:; cinab;int temp = a; a = b; b = temp; cout交换后两个数据为：a\tbendl;return0;}输入半径和高计算圆柱形的体积#includeiostreamusingnamespace std;int main(){double r,h,v;double PI =3.14;//或者使用常量 const double PI=3.14; ，但绝对不能写作 π cout请输入半径和高; cinrh; v = PI*r*r*h; cout体积为:vendl;return0;}输入直角三角形的两个直角边长，求斜边的长度，及面积和周长。#includeiostream#includecmathusingnamespace std;int main(){double a,b,c,s,l; cout请输入直角三角形的两个直角边长度:; cinab; c = sqrt(a*a+b*b); l = a+b+c; s = a*b/2; cout斜边长为：cendl; cout周长为：lendl; cout面积为：sendl;return0;}求三角形的面积（已知三个边能构成三角形）。#includeiostream#includecmathusingnamespace std;int main(){double a,b,c,s; cout请输入三角形三边边长:; cinabc;double temp; temp =(a+b+c)/2; s = sqrt(temp*(temp-a)*(temp-b)*(temp-c)); cout三角形面积为：sendl;return0;}求一元二次方程的根（假定有实数根）。#includeiostream#includecmathusingnamespace std;int main(){int a,b,c;double delta;double x1,x2; cout请输入方程的三个系数:; cinabc; delta = b*b-4*a*c; root1 =(-b+sqrt(delta))/(2*a); root2 =(-b-sqrt(delta))/(2*a); coutroot1 = root1endl; coutroot2 = root2endl;return0;}输入一个4位正整数，依次输出该数的千、百、十和个位，并输出各位的和，并再反向输出该数。#includeiostream#includecmathusingnamespace std;int main(){int x,qian,bai,shi,ge,sum,newx; cout请输入一个四位正整数:; cinx; qian = x/1000; bai =(x/100)%10; shi =(x/10)%10; ge = x%10; sum = qian+bai+shi+ge; newx = ge*1000+shi*100+bai*10+qian; coutqian\tbai\tshi\tgeendl; coutsum=sumendl; coutnewx=newxend