简单C语言及运行结果.docx
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简单C语言及运行结果.docx
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简单C语言及运行结果
《C程序设计》课程实验报告
实验名称
习题
实验序号
学号
***
姓名
***
班级
***
实验日期
***
指导教师
***
成绩
第3章
4.
(1)#include
intmain()
{charc1,c2;
c1=97;
c2=98;
printf("c1=%c,c2=%c\n",c1,c2);
printf("c1=%d,c2=%d\n",c1,c2);
return0;
}
(2)#include
intmain()
{charc1,c2;
c1=197;
c2=198;
printf("c1=%c,c2=%c\n",c1,c2);
printf("c1=%d,c2=%d\n",c1,c2);
return0;
}
(3)#include
intmain()
{intc1,c2;
c1=97;
c2=98;
printf("c1=%c,c2=%c\n",c1,c2);
printf("c1=%d,c2=%d\n",c1,c2);
return0;
}
5.#include
intmain()
{inta,b;
floatx,y;
charc1,c2;
scanf("a=%db=%d",&a,&b);
scanf("%f%e",&x,&y);
scanf("%c%c",&c1,&c2);
printf("a=%d,b=%d,x=%f,y=%f,c1=%c,c2=%c\n",a,b,x,y,c1,c2);
return0;
}
6.#include
intmain()
{charc1='C',c2='h',c3='i',c4='n',c5='a';
c1=c1+4;
c2=c2+4;
c3=c3+4;
c4=c4+4;
c5=c5+4;
printf("passworis%c%c%c%c%c\n",c1,c2,c3,c4,c5);
return0;
}
7.#include
intmain()
{floath,r,l,s,sq,vq,vz;
floatpi=3.141526;
printf("请输入圆半径r,圆柱高h∶");
scanf("%f,%f",&r,&h);//要求输入圆半径r和圆柱高h
l=2*pi*r;//计算圆周长l
s=r*r*pi;//计算圆面积s
sq=4*pi*r*r;//计算圆球表面积sq
vq=3.0/4.0*pi*r*r*r;//计算圆球体积vq
vz=pi*r*r*h;//计算圆柱体积vz
printf("圆周长为:
l=%6.2f\n",l);
printf("圆面积为:
s=%6.2f\n",s);
printf("圆球表面积为:
sq=%6.2f\n",sq);
printf("圆球体积为:
v=%6.2f\n",vq);
printf("圆柱体积为:
vz=%6.2f\n",vz);
return0;
}
第4章
3.
(1)0
(2)1(3)1(4)0(5)1
4.#include
intmain()
{
inta,b,c;
printf("请输入三个整数:
");
scanf("%d,%d,%d",&a,&b,&c);
if(a
if(b printf("max=%d\n",c); else printf("max=%d\n",b); elseif(a printf("max=%d\n",c); else printf("max=%d\n",a); return0; } 6.#include intmain() {intx,y; printf("输入x: "); scanf("%d",&x); if(x<1)/*x<1*/ {y=x; printf("x=%3d,y=x=%d\n",x,y); } elseif(x<10)/*1= {y=2*x-1; printf("x=%d,y=2*x-1=%d\n",x,y); } else/*x>=10*/ {y=3*x-11; printf("x=%d,y=3*x-11=%d\n",x,y); } return0; } 7. (1)#include intmain() { intx,y; printf("enterx: "); scanf("%d",&x); y=-1; if(x! =0) if(x>0) y=1; else y=0; printf("x=%d,y=%d\n",x,y); return0; } (2)#include intmain() { intx,y; printf("pleaseenterx: "); scanf("%d",&x); y=0; if(x>=0) if(x>0)y=1; elsey=-1; printf("x=%d,y=%d\n",x,y); return0; } 8.#include intmain() {floatscore; chargrade; printf("请输入学生成绩: "); scanf("%f",&score); while(score>100||score<0) {printf("\n输入有误,请重输"); scanf("%f",&score); } switch((int)(score/10)) {case10: case9: grade='A';break; case8: grade='B';break; case7: grade='C';break; case6: grade='D';break; case5: case4: case3: case2: case1: case0: grade='E'; } printf("成绩是%5.1f,相应的等级是%c\n",score,grade); return0; } 11.#include intmain() {intt,a,b,c,d; printf("请输入四个数: "); scanf("%d,%d,%d,%d",&a,&b,&c,&d); printf("a=%d,b=%d,c=%d,d=%d\n",a,b,c,d); if(a>b) {t=a;a=b;b=t;} if(a>c) {t=a;a=c;c=t;} if(a>d) {t=a;a=d;d=t;} if(b>c) {t=b;b=c;c=t;} if(b>d) {t=b;b=d;d=t;} if(c>d) {t=c;c=d;d=t;} printf("排序结果如下: \n"); printf("%d%d%d%d\n",a,b,c,d); return0; } 第5章 6.#include intmain() {doubles=0,t=1; intn; for(n=1;n<=20;n++) { t=t*n; s=s+t; } printf("1! +2! +...+20! =%22.15e\n",s); return0; } 7.#include intmain() { intn1=100,n2=50,n3=10; doublek,s1=0,s2=0,s3=0; for(k=1;k<=n1;k++)/*计算1到100的和*/ {s1=s1+k;} for(k=1;k<=n2;k++)/*计算1到50各数的平方和*/ {s2=s2+k*k;} for(k=1;k<=n3;k++)/*计算1到10的各倒数和*/ {s3=s3+1/k;} printf("sum=%15.6f\n",s1+s2+s3); return0; } 10.#include intmain() { inti,n=20; doublea=2,b=1,s=0,t; for(i=1;i<=n;i++) { s=s+a/b; t=a, a=a+b, b=t; } printf("sum=%16.10f\n",s); return0; } 16.#include intmain() {inti,j,k; for(i=0;i<=3;i++) {for(j=0;j<=2-i;j++) printf(""); for(k=0;k<=2*i;k++) printf("*"); printf("\n"); } for(i=0;i<=2;i++) {for(j=0;j<=i;j++) printf(""); for(k=0;k<=4-2*i;k++) printf("*"); printf("\n"); } return0; } 第6章 3.#include intmain() { inta[3][3],sum=0; inti,j; printf("enterdata: \n"); for(i=0;i<3;i++) for(j=0;j<3;j++) scanf("%3d",&a[i][j]); for(i=0;i<3;i++) sum=sum+a[i][i]; printf("sum=%6d\n",sum); return0; } 4.#include intmain() {inta[11]={1,4,6,9,13,16,19,28,40,100}; inttemp1,temp2,number,end,i,j; printf("arraya: \n"); for(i=0;i<10;i++) printf("%5d",a[i]); printf("\n"); printf("insertdata: "); scanf("%d",&number); end=a[9]; if(number>end) a[10]=number; else {for(i=0;i<10;i++) {if(a[i]>number) {temp1=a[i]; a[i]=number; for(j=i+1;j<11;j++) {temp2=a[j]; a[j]=temp1; temp1=temp2; } break; } } } printf("Nowarraya: \n"); for(i=0;i<11;i++) printf("%5d",a[i]); printf("\n"); return0; } 11.#include intmain() {chara[5]={'*','*','*','*','*'}; inti,j,k; charspace=''; for(i=0;i<5;i++) {printf("\n"); printf(""); for(j=1;j<=i;j++) printf("%c",space); for(k=0;k<5;k++) printf("%c",a[k]); } printf("\n"); return0; } 13.#include intmain() {chars1[80],s2[40]; inti=0,j=0; printf("inputstring1: "); scanf("%s",s1); printf("inputstring2: "); scanf("%s",s2); while(s1[i]! ='\0') i++; while(s2[j]! ='\0') s1[i++]=s2[j++]; s1[i]='\0'; printf("\nThenewstringis: %s\n",s1); return0; } 15.#include #include intmain() {chars1[80],s2[80]; inti; printf("inputs2: "); scanf("%s",s2); for(i=0;i<=strlen(s2);i++) s1[i]=s2[i]; printf("s1: %s\n",s1); return0; }
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