C语言实验题答案.doc

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1、/*实验五第四题*/#includemain(){charch;intch1=0,ch2=0,ch3=0;printf("请输入一行字符：");while((ch=getchar())!='*'){if(ch>='a'&&ch<='z'

2、

3、ch>='A'&&ch<='Z')ch1++;elseif(ch>='0'&&ch<='9')ch2++;elsech3++;}printf("字母有%d个，数字有%d个，其他字符有%d个",ch1,ch2,ch3);}/*请输入一行字符：dkgjie2569*字母有6个，数字有4

4、个，其他字符有0个Pressanykeytocontinue*//*实验五第五题*/#includemain(){inti,count=0;for(i=500;i<=600;i++){if(i%5==0&&i%7==0){printf("%d",i);count++;}}putchar('');printf("共有%d个",count);}/*525560595共有3个Pressanykeytocontinue*//*实验五第六题*/#includemain(){inti,count=0,k,s

5、um=0;printf("请输入k的值：");scanf("%d",&k);for(i=k;i>=1;i--){if(i%13==0

6、

7、i%17==0){sum+=i;count++;printf("%dt",i);if(count==10)break;}}printf("和为%d",sum);}/*请输入k的值：100009997999699849979997199629958994599329928和为99652Pressanykeytocontinue*//*实验五第七题*/#includemain(){in

8、ti,fac=1,sum=0;for(i=1;i<=10;i++){fac=fac*i;sum+=fac;}printf("1!+2!+……+10!=%d",sum);}/*1!+2!+……+10!=Pressanykeytocontinue*//*实验五第八题*/#includemain(){inti,j;for(i=1;i<=9;i++){printf("");for(j=1;j<=i;j++)printf("%d*%d=%d",j,i,i*j);}printf("");}/*1*1=11*2=22*2=

9、41*3=32*3=63*3=91*4=42*4=83*4=124*4=161*5=52*5=103*5=154*5=205*5=251*6=62*6=123*6=184*6=245*6=306*6=361*7=72*7=143*7=214*7=285*7=356*7=427*7=491*8=82*8=163*8=244*8=325*8=406*8=487*8=568*8=641*9=92*9=183*9=274*9=365*9=456*9=547*9=638*9=729*9=81Pressanykeytocontinue*//*实验六第

10、四题*/#includemain(){inta,b,c,d,i,count=0;for(i=1000;i<=9999;i++){a=i/1000;b=i%1000/100;c=i%100/10;d=i%10;if(a+c==b*d){printf("%d",i);count++;if(count%10==0)putchar('');}}putchar('');}/*110111121123113411451156116711781189121112321253127412951321135213831431147

11、21541159216511761187119812102211321242135214621572168217922012222224322642285231123422373242124622531258226412751286129713103311431253136314731583169321232333254327532963301333233633394341134523493352135723631369237413851396141044115412641374148415942024223424442654286432

12、243534384440144424483451145624621468247314841495151055116512751385149521352345255527652975312534