C语言作业实验报告[材料]_c语言作业实验报告

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2,(1)switch语句实现 #include void main(){ int score;printf(“Please input a score:n”);scanf(“%d”,&score);if(score100)

printf(“Please input the right score!n”);else {

switch(score/10)

{

case 10:

case 9:

printf(“An”);

break;

case 8:

printf(“Bn”);

break;

case 7:

printf(“Cn”);

break;

case 6:

printf(“Dn”);

break;

default:

printf(“En”);

} } }（2）if语句实现 #include void main(){ int score;printf(“Please input a score:n”);scanf(“%d”,&score);if(score100)

printf(“Please input a right score!n”);else {

if(score/10>=9)

printf(“An”);

if(score/10==8)

printf(“Bn”);

if(score/10==7)

printf(“Cn”);

if(score/10==6)

printf(“Dn”);

if(score/10

printf(“En”);} } 3，#include void main(){ int number,a,b,c,d,e;printf(“Please input a number:n”);scanf(“%d”,&number);if(number99999)

printf(“The number is out of compa!”);else {

a=number%10;

if(a==number)

{

printf(“The number is 1.n”);

printf(“%dn”,a);

printf(“%dn”,a);

}

else

{

b=number/10%10;

if(b==number/10)

{

printf(“Yhe number is 2.n”);

printf(“%d %dn”,b,a);

printf(“%d %dn”,a,b);

}

else

{

c=number/100%10;

if(c==number/100)

{

printf(“The number is 3.n”);

printf(“%d %d %dn”,c,b,a);

printf(“%d %d %dn”,a,b,c);

}

else

{

d=number/1000%10;

if(d==number/1000)

{

printf(“The number is 4.n”);

printf(“%d %d %d %dn”,d,c,b,a);

printf(“%d %d %d %dn”,a,b,c,d);

}

else

{

e=number/10000;

printf(“The number is 5.n”);

printf(“%d %d %d %d %dn”,e,d,c,b,a);

printf(“%d %d %d %d %dn”,a,b,c,d,e);

}

}

}

} } } 4，#include void main(){ int a,b,c,x;printf(“Please input three numbers:n”);scanf(“%d”,&a);scanf(“%d”,&b);scanf(“%d”,&c);if(a>b){

x=a;

a=b;

b=x;} if(c

if(c

printf(“%d %d %dn”,a,c,b);

else

printf(“%d %d %dn”,a,b,c);} } 5, #include #include void main(){ float a,b,c,m,s;printf(“Please input lengthsn”);scanf(“%f”,&a);scanf(“%f”,&b);scanf(“%f”,&c);if(a+b>c&&a+c>b&&b+c>a){

m=(a+b+c)*(a+b-c)*(a+c-b)*(b+c-a);

s=sqrt(m)/4;

printf(“%fn”,s);

if(a==b&&b==c)

printf(“DengBianSanJiaoXing”);

else

{

if(a==b||b==c||c==a)

printf(“DengYaoSanJiaoXing”);

else

{

if(a*a+b*b==c*c||a*a+c*c==b*b||b*b+c*c==a*a)

printf(“ZhiJiaoSanJiaoXing”);

else

printf(“YiBanSanJiaoXing”);

}

} } else

printf(“Error!n”);} 6, #include #include void main(){ float salary;

} printf(“Please input the salary:n”);scanf(“%f”,&salary);if(salary>850&&salary850&&salary

salary=salary-0.015*salary;else {

if(salary>2000)

salary=salary-0.02*salary;} } printf(“The after-tax salary is:%fn”,salary);