1 输入三个整数 x,y,z，把这三个数由小到大输出。# include void main(){ int x,y,z,a; scanf ("%d,%d,%d",&x,&y,&z);if(x>y) {a=x; x=y;y=a;} if(x>z) { a=x; x=z; z=a; } if(y>z) {a=y; y=z; z=a; }printf("%d,%d,%d\n",x,y,z);} 2 输入圆的半径，输出圆的周长和面积。# include # define PI 3.1415926# define S ==PI*r*r# define V (4.0/3)*PI*r*r*r void main() { double r; printf("please input r:"); scanf("%lf",&r); printf("area is %.4lf\n",S); printf("volume is %.4lf\n",V); }输入正方形的边长，输出正方形的周长和面积。# includevoid main(){ float c,zc,mj;printf("输入你的正方形");scanf("%f\n",&c); zc=4*c;mj=c*c;printf("周长%f，面积%f，边长%f",zc,mj,c);}3 用格式输入函数输入 3 个字符，并用输出函数反向输出 3 个字符和他们的ASCII 码。# includeint main(){char-ch1,ch2,ch3;printf("please input three characters:\n");scanf("%C%C%c",&ch1,&ch2,&ch3);printf("%c\n%d\n",ch3,ch3);printf("%c\n%d\n",ch2,ch2);printf("%c\n%d\n",ch1,ch1);}输入一个摄氏温度，要求输出华氏温度。公式为 f=9/5*c+32。# include void main() { float C,F; scanf("%f",&F); C=5.0/9*(F-32); printf("%8.2f",C); }4。比较两个数大小的题#include void main() { int a,b; scanf("%d,%d",&a,&b); if(a>b) printf("%d\n",a); else printf("%d\n",b); } 第二题： 此题作废（千万不要用）#includevoidmain() { char a,b,c; scanf("%c,%c,%c",&a,&b,&c); while((a<97||a>122)||(b<97||b>122)||(c<97||c>122))；{ printf("您输入非三个小写字母，请重新输入：\n"); scanf("%c,%c,%c",&a,&b,&c); } printf("%c,%c,%c\n",a-32,b-32,c-32); }5 输入任意 10 个数，求他们的平均值。# include void main() { Printf( "请输入 10 个整数：" );int a[10], k = 0, sum = 0; for (int i = 0; i < 10; ++i) ; { i>a[i];if 10>=a[i] >0 ++k; sum = sum+a[i]; } float ave=sum / 10 .0printf( "平均值为：%f\n",ave); }6 实现从键盘输入两个整数，按从小到大次序输出这两个数。# include void main() {...
