c语言编程代码

C语言编程代码include<stdio.h>#include<math.h>intmain(void)doubley;intx,m;for(y=10;y>=-10;y-)m=2.5*sqrt(100-y*y); /・计算行y对应的列坐标m,2.5是屏幕纵横比调节系数因为屏幕的行距大于列距,不进行调节显示出来的将是椭圆・/for示出来的将是椭圆・/for(x=1;x<30_m;x++)printf("");控制・/printf("*");for(;x<30+m;x++)printf("");控制・/printf('*\n");/・图形左侧空白/・圆的左侧・//・图形的空心部分/・圆的右侧・/return0;/*在Vc++6.0中的输出结果是:****Pressanykeytocontinueinclude<stdio.h>intmain(void)(inta,b,c,max;printf("pleaseinputa,b,c［请以空格分隔］:\n");scanf("%d%d%d",&a,&b,&c);max=a;if(max<b)max=b;if(max<c)max=c;printf("thelargestnumberis%d\n",max);return0;include<stdio.h>intmain(void)finti=2518;floata=3.1415;printf("i=%d,a=%f,a*10=%e\n",i,a,a*10);return0输出结果是:i=2518,a=3.141500,a*10=3.141500e+001include<stdio.h>intmain(void){inta=1,b=0;printf("%d\n",b=a+b);printf("%d\n",a=2*b);return0;输出结果:12#include<stdio.h>intmain(void){doublea=123.456;printf(/z%6.2f",a);return0;输出结果:123.46ttinclude<stdio.h>intmain(void){intx,y,t;printf("Enterx&y［请用空格分隔］:\n");scanf("%d%d”,&x,&y);printf("x=%dy=%d\n”,x,y);t=x;x=y;y=t;printf("x=%dy=%d\n”,x,y);输出结果:Enterx&y:12x=ly=2x=2y=linclude<stdio.h>intmain(void){inta,b,c;printf("Pleaseinputa,b,c［请用逗号分隔］:\n");scanf("%d,%d,%d",&a,&b,&c);if(a〉=b)if(b>=c)printf("c=%d,b=%d,a=%d\n",c,b,a);elseif(c>=a)printf("b=%d,a=%d,c=%d\n",b,a,c);elseprintf("b=%d,c=%d,a=%d\n",b,c,a);elseif(a>c)printf("c=%d,a=%d,b=%d\n”,c,a,b);elseif(b>c)printf("a=%d,c=%d,b=%d\n”,a,c,b);elseprintf("a=%d,b=%d,c=%d\n”,a,b,c);return0;输出结果:Pleaseinputa,b,c:1,4,7a=l,b=4,c=7Pleaseinputa,b,c:5,1,2b=l,c=2,a=5Pleaseinputa,b,c:2,1,5b=l,a=2,c=5include<stdio.h>intmain(void){if(3>2)printf("AAAA\n");elseif(3>1)printf("BBBB\n");elseprintf("CCCC'n");return0;)/*在Vc++6.0中的输出结果是:AAAAinclude<stdio.h>intmain(void){ints,n;for(s=0,n=100;n>=l;n—){s=s+n;]printf("s=%d\n”,s);return0;在Vc++6.0中的输出结果是:5050*/#include<stdio.h>intmain(void){inti;intsum=0;for(i=1;i<=100;++i)sum=sum+i;printf("sum=%d",sum);return0;)/*在Vc++6.0中的输出结果是:5050#include<stdio.h>intmain(void){inti;intsum=0;for(i=1;i<10;i+=2)sum=sum+1;printf("sum=%d”,sum);return0;)/*在Vc++6.0中的输出结果是:sum=5求!到10的奇数的和include<stdio.h>intmain(void){inti;intsum=0;for(i=1;i<10;i+=2){sum=sum+i;printf("i=%d\n，\i);printf("sum=%d\n”,sum);return0;)在Vc++6.0中的输出结果是:i=11sum=25include<stdio.h>intmain(void){inti;intsum=0;for(i=3;i<=10;++i){if(i%3==0)sum=sum+i;printf("sum=%d\n",sum);return0;

sum=3sum=3sum=3sum=9sum=9sum=9sum=18sum=18*//・求1+1/2+1/3+....+1/100的和*/#include<stdio.h>intmain(void){inti;floatsum=0;for(i=1;i<=100;++i)sumsum+1/(float)i;printf("sum=%f\n",sum);return0;在Vc++6.0中的输出结果是:sum=5.187378/・求!+1/2+1/3+....+1/100的和*/#include<stdio.h>intmain(void){inti;floatsum=0;for(i=1;iく=100;++i){sum=sum+1.0/i;}printf("sum=%f\n",sum);return0;sum=5.187378/・求!到100的奇数的和*/#include<stdio.h>intmain(void){inti;intsum=0;for(i=1;i<101;++i){if(i%2==1)

sum+=i;jprintf("sum=%d\n",sum);return0;在Vc++6.0中的输出结果是:sum=2500*//・求!到100的奇数的个数*/#include<stdio.h>intmain(void)(inti;intent=0J〃个数用ent表示for(i=1;i<101;++i)(if(i%2==1)++cnt;Fprintf("ent=%d\n",ent);return0;在Vc++6.0中的输出结果是:sum=50*//・求1到100的奇数和的平均值*/#include<stdio.h>intmain(void)finti;intsum=0;intent=0;〃个数用ent表示count的缩写floatavg;//average平均值的缩写for(i=1;i<101;++i)(if(i%2==1)sum+=i,++cnt;Iavg=1.0*sum/ent;printf("sum=%d\n",sum);printf("ent=%d\n",ent);printf("avg=%f\n",avg);return0;/*sum=2500ent=50avg=50.000000/・求1至リ100的奇数和与偶数和*/#include<stdio.h>intmain(void){inti;intsuml=0;intsum2=0;for(i=1;i<101;++i)if(i%2==1)(suml+=i;else{sum2+=i;printf（"奇数和=%d\n",suml）;printf（"偶数和=%d\n",sum2）;return0;在Vc++6.0中的输出结果是:奇数和=2500偶数和=2550#include<stdio.h>intmain(void)(inti,j,k,m;i=3;j=3；k=i++;〃后自增整体表达式的值是i+1之前的值m=++j;〃前自增整体表达式的值是i+1之后的值printf（"i=%d,j=%d,k=%d,m=%d\n",i,j,k,m）;return0;/*在Vc++6.0中的输出结果是:i=4,j=4,k=3,m=4#include<stdio.h>intmain(void)inti,j;for(i=0;i<3;++i)for(j=2;j<5;++j)printf("哈哈!\n");printf("嘻嘻!\n");return0;)/*在Vc++6.0中的输出结果是:哈哈!

哈哈!哈哈!哈哈!哈哈!哈哈!哈哈!哈哈!哈哈!嘻嘻!*/#include<stdio.h>intmain(void)inti,j;for(i=0;i<3;++i)printf("嘿嘿!\n");for(j=2;

printfj<5;++j)(“哈哈!\n〃);printf("嘻嘻!\n〃);return0;/*哩哩!哩哩!哩哩I哈哈!哈哈!哈哈!嘻嘻!include<stdio.h>intmain（void）{inti,j;for（i=0;i<3;++i）{printf（"嘿嘿!\n"）;{for（j=2;j<5;++j）printf（"哈哈!\n"）;printf（"嘻嘻!\n"）;printf（"呜呜!\n"）;return0;哈哈!哈哈!哈哈!嘻嘻!哈哈!哈哈!哈哈!嘻嘻!哈哈!哈哈!哈哈!嘻嘻!呜呜!include<stdio.h>intmain（void）{inti,j;for（i=0;i<3;++i）{printf（"嘿嘿!\n"）;for（j=2;j<5;++j）{printf（"哈哈!\n"）;printf（"嘻嘻!\n"）;I}printf（"呜呜!\n"）;return0;在Vc++6.0中的输出结果是:哩哩!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!哈哈!嘻嘻!呜呜!#include<stdio.h>ttinclude<stdlib.h>intmain(void){intday=0,hour,minute,m;printf〈'Pleaseminutes:");scanf("%d",&m);minute=m%60;hour=m/60;while(hour>=24)hour-=24;day++;printf("day:%d,hour:%d,minute:%d\n,day,hour,minute);return0;在Vc++6.0中的输出结果是:Pleaseminutes:560day:0,hour:9,minute:20ttinclude<stdio.h>intmain(void)(inta,b;printf(“请输入两个值［请以空格分隔］'n",a,b);scanf("%d%d”,&a,&b);a=a+b;b=a-b;a=a-b;printf("a=%d,b=%d\n”,a,b);return0;在Vc++6.0中的输出结果是:请输入两个值［请以空格分隔］12a=2,b=l#include<stdio.h>intmain(void){intsum=0;inti;i=l；while(i<101)(sum=sum+i;++i；Tprintf("sum=%d\n",sum);return0;sum=5050Pressanykeytocontinuefor(l;2;3)A;等价于1；while(2)[A;3;}for循环比while逻辑性更强#include<stdio.h>intmain(void){intsum=0;intval;intm;printf("请输入要判断的数字:");scanf("%d",&val);m=val;while(m){sum=sum*10+m%10;m/=10;Iif(sum==val)printf("YES!\n");elseprintf("NO!\n");return0;在Vc++6.0中的输出结果是:请输入要判断的数字:1234321YES!Pressanykeytocontinue*/include<stdio.h>include<math.h>intmain(void)doublea,b,c;doubledelta;doublexl,x2;printf(〃请输入一元二次方程的3个系数:'n〃)；printf("a=");scanf(“机f”,&a);printf("b=");scanf("%lf",&b);printf("c=");scanf("机f”,&c);delta=b*b-4*a*c;if(delta>0){xl=(-b+sqrt(delta))/(2*a);x2=(-b-sqrt(delta))/(2*a);printf("有两个解,xl=%lf,x2=%lf\n”,xl,x2);elseif(0==delta)xl=x2=(-b)/(2*a);printf("有唯一解,xl=x2=%lf\n/，,xl,x2);else(printf("无实数解!'n");return0;在Vc++6.0中的输出结果是:请输入一元二次方程的3个系数:a=1b=5c=6有两个解,xl=-2.000000,x2=-3.000000Pressanykeytocontinue#include<stdio.h>intmain(void){inta[5]={1,2,3,4,5};inti;for(i=0;i<5;++i)printf("%d\n",a[i]);return0;在Vc++6.0中的输出结果是:12345Pressanykeytocontinue*/include<stdio.h>intmain(void){inta[5];inti;scanf("%d",&a[〇]);printf("a[〇]=%d\n”,a[0]);scanf("%d",&a[3]);printf("a[3]=%d\n",a[3]);for(i=0;i<5;++i)printf("%d",a[i]);return0;)/*在Vc++6.0中的输出结果是:1a[0]=12a[3]=21-858993460-8589934602-858993460Pressanykeytocontinueinclude<stdio.h>intmain(void)finta[7]={1,2,3,4,5,6,7};inti,j,t;=0;j=6;while(i<j)(t=a[i];a[i]=a[j];a[j]=t;i++；—j；}for(i=0;i<7;++i)printf("%d\n",a[i]);return0;在Vc++6.0中的输出结果是:7654321Pressanykeytocontinue#include<stdio.h>intmain(void){inta[3][4]={{1,2,3,4},{5,6,7,8),{9,10,11,12}inti,j;for(i=0;i<3;++i)(for(j=0；j<4;++j)printf("%-5d",a[i][j]);〃-表示左对齐5表示5个空格printf('\n");return0;在Vc++6.0中的输出结果是:123456789101112Pressanykeytocontinue#include<stdio.h>intmain(void)doublevar;longa;scanf("%lf%d”,&var,&a);〃那个!f中的1一定要,否则错误printf(z/%f%d\n，/,var,a);return0;/*在Vc++6.0中的输出结果是:1.0000002Pressanykeytocontinue*/include<stdio.h>intmain(void)inta=0,b=0,c=0;c=(a-=a-5),(a=b,b+3);printf("%d,%d,%d\n，，,a,b,c);return0;/*在Vc++6.0中的输出结果是:0,0,5Pressanykeytocontinueinclude<stdio.h>intmain(void)inta;floatb,c;scanf(，，%2d%3f%4f，/,&a,&b,&c);printf('\na=%d,b^f,c=%f\n”,a,b,c);return0;在Vc++6.0中的输出结果是:987654321a=98,b=765.000000,c=432L000000Pressanykeytocontinue*/include<stdio.h>intmain(void)inta,s,f;printf（"请输入分钟:\n"）;scanf&a）;s=a/60;f=a%60;printf（"您输入的是%d时%d分.、n”,s,f）;return0;在Vc++6.0中的输出结果是:请输入分钟:560您输入的是9时20分.Pressanykeytocontinue*/include<stdio.h>intmain（void）inti,sum=O;for(i=0;iく=100;i+=2)sum+=i;i+=2;}printf("/d\n",sum);return0;在Vc++6.0中的输出结果是:1300Pressanykeytocontinue*/include<stdio.h>intmain(void){intsignal,i;floatitem=L0,sum=0.0;{item=sign*l.0/i;sum=sum+item;sign=~sign;}printf(/zThesum=sum);return0;在Vc++6.0中的输出结果是:Thesum=0.692646Pressanykeytocontinue1到9,任选3个数加起来和为15,用C语言编写,求有多少组,并列出来include<stdio.h>intmain(void)(inta[9],i,k,j,s=0;for(i=l;i<=9;i++)a[i-l]=i;for(i=l;iく=9;i++)for(k=i;k〈=9;k++)j=15-a[i-l]-a[k-l];if(j>=l&&jく=9&&j>=a[i-l]&&j>=a[k-l]){printf("%d+%d+%d=15\n",a[i-l],a[k-l],j);s++;printf（"总共有%d种可能”,s）;return0;在Vc++6.0中的输出结果是:1+5+9=151+6+8=151+7+7=152+4+9=152+5+8=152+6+7=153+3+9=153+4+8=153+5+7=153+6+6=154+4+7=154+5+6=155+5+5=15总共有13种可能Pressanykeytocontinueinclude<stdio.h>intmain(void)finta[9],i,k,j,s=0;for(i=l;iく=9;i++)a[i-l]=i;for(i=l;iく=9;i++)for(k=i;k<=9;k++)(j=14-a[i-l]-a[k-l];if(j>=l&&jく=9&&j>=a[i-l]&&j>=a[k-l]&&a[i-1]!=a[k]&&a[k]!=j){printf("刎+%d+%d=15\n”,a[i-l],a[k],j);s++;printf（"总共有%d种可能”，s）;return0;1+5+9=151+6+8=152+4+9=152+5+8=152+6+7=152+7+6=153+4+8=153+5+7=154+5+6=154+6+5=15总共有10种可能Pressanykeytocontinueinclude<stdio.h>intmain(void)(inta[10]={0,1,2,3,4,5,6,7,8,9},i=l,k=l,j=l,s=0;for(i=l;i<=9;i++)for(k=i+l;k<=9;k++)j=15-a[i]-a[k];if(j>=l&&jく=9&&j>a[k])printf(*%d+%d+%d=15\n*,a[i],a[k],a[j]);s++;}}printf("总共有%d种可能”,s);return0;在Vc++6.0中的输出结果是:1+5+9=151+6+8=152+4+9=152+5+8=152+6+7=153+4+8=153+5+7=154+5+6=15总共有8种可能Pressanykeytocontinue*/ttinclude<stdio.h>intmain(void)(inti;for(i=0;i<10;++i)printf("/d\n",i);return0;在Vc++6.0中的输出结果是:0include<stdio.h>include<math.h>intmain(void){inta,b,c;floats,area;printf("请输入a,b,c:\n");scanf("%d,%d,%d",&a,&b,&c);s=(a+b+c)*(l.0/2);area=sqrt(s*(s-a)*(s-b)*(s-c));printf("输出三角形的面积%4.2f\n",area);return0;在Vc++6.0中的输出结果是:请输入a,b,c:3,4,5输出三角形的面积6.00Pressanykeytocontinueinclude<stdio.h>#include<math.h>intmain(void)inta,b,c,d,e,f;a=1,b=2,c=3,d=9,e=-5,f=100;if(a>b)printf("%d\n",a);elseprintf("%d\n”,b);if(c>d)printf("%d\n",c);elseprintf(为d\n”,d);if(e>f)printf(级d\n”,e);elseprintf("%d\n”,f);return0;在Vc++6.0中的输出结果是:29100Pressanykeytocontinue#include<stdio.h>voidmax(inti,intj)//void表示函数没有返回值max是函数的名字i和j是形式参数(if(i>j)printf("%d\n',i);elseprintf("%d\n",j);#include<math.h>intmain(void){inta,b,c,d,e,f;a=1,b=2,c=3,d=9,e=-5,f=100;max(a,b);max(c,d);max(e,f);return0;在Vc++6.0中的输出结果是:29100Pressanykeytocontinue*/include<stdio.h>intf(void)〃void表示该函数不能接受数据int表示函数返回值是int类型的数据return10J〃向主调函数返回!0)intmain(void)fintj=88;j=f0；printf("%d\n",j);return0;)/*在Vc++6.0中的输出结果是:10Pressanykeytocontinueinclude<stdio.h>include<math.h>intmain(void){longn=0;floata=l;floatsum=0;floatj;while(fabs(a)>le-6)：{sum+=a;n++;if(n%2==0)j=l.0;elsej=-l.0；a=j/(2*n+l);Isum*=4;printf("答案是:%f\return0;)在Vc++6.0中的输出结果是:答案是:3.141594Pressanykeytocontinue#include<stdio.h>intf()(return10.5J〃因为函数的返回类型为int,所以最终返回10}intmain(void){inti=99;doublex=66;x=f();printf(訣lf\n”,x);return0;/*在Vc++6.0中的输出结果是:10.000000Pressanykeytocontinue*/include<stdio.h>voidf(void){inti;for(i=0;i<5;++i){printf("大家辛苦了!'n");break; 〃break用来终止循环的}printf("同志们好!、n");)intmain(void){f();return0;)/*在Vc++6.0中的输出结果是:大家辛苦了!同志们好！Pressanykeytocontinue*/include<stdio.h>voidf(void){inti;for(i=0;i<5;++i){printf("大家辛苦了!'n");return; "return用来终止函数的前面是void的话return后面不能加任何值printf("同志们好!'n");)intmain(void){f();return0;)/*在Vc++6.0中的输出结果是:大家辛苦了！Pressanykeytocontinueinclude<stdio.h>intmain(void){intx;inty;intc;x=5;y=10；c=++x+y—;printf("c=%d\n”,c);return0;在Vc++6.0中的输出结果是:c=16Pressanykeytocontinueinclude<stdio.h>intmain(void){intx;inty;intc;x=5;y=10;c=x+++y——;printf("c=%d\n”,c);return0;在Vc++6.0中的输出结果是:c=15Pressanykeytocontinue*/include<stdio.h>intmain(void)(printfC%3s,%7.2s,%.4s,%-5.3s\n","CHINA","CHINA","CHINA","CHINA");return0;在Vc++6.0中的输出结果是:CHINA,CH,CHIN,CHIPressanykeytocontinue判断ー个数是不是素数include<stdio.h>intmain(void)(intval;inti;scanf("%d”,&val);for(i=2;i<val;++i){if(val%i==0)break;Iif(i==val)〃因为如果i不是素数i的值一定不会加到val,在之前就会被break终止printf("YES!\n");elseprintf("N0!\n");return0;11YES!Pressanykeytocontinue判断ー个数是不是素数include<stdio.h>boolIsPrime(intval) 〃真假用bool表示,素数用IsPrime表示{inti;for(i=2;i<val;++i)(if(val%i==0)break;if(i==val) 〃因为如果i不是素数i的值一定不会加到val,在之前就会被break终止returntrue;elsereturnfalse;intmain(void){intm;scanf("%d",&m);if(IsPrime(m))printf("YES!\n");elseprintf("N0!\n");return0;)/*在Vc++6.0中的输出结果是:11YES!Pressanykeytocontinue*/include<stdio.h>intmain(void)scanf("%d",&i);printf("i=%d\n”,i);if(i>=90)printf("A\n");elseif(i>=80)printf("B\n");elseif(i>=70)printf("C\n");elseif(i>=60)printf("D\n");elseprintf("E\n");return0;在Vc++6.0中的输出结果是:90i=90APinclude<stdio.h>intmain(void)inta=l,b=2,c=3,d=0;if(a==l&&b++==2)if(b!=2IIc—!=3)printf(，，%d,%d,%d\n”,a,b,c);elseprintf("%d,%d,%d\n”,a,b,c);return0;在Vc++6.0中的输出结果是:1,3,3Pressanykeytocontinueinclude<stdio.h>intf(inti)intmain(void)inti=99;printf("%d\n”,i);i=f⑸；printf("%d\n",i);return0;在Vc++6.0中的输出结果是:9910Pressanykeytocontinueinclude<stdio.h>intmain(void){inti,val,j;scanf("%d”,&val);for(i=2;i〈=val;++i)for(j=2;j〈=i;++j)if(0==i%j)break;}if(j==i)printf("%d\n”,i);}return0;在Vc++6.0中的输出结果是:20235711131719Pressanykeytocontinue#include<stdio.h>boolIsPrime(intm)for(i=2;iくm;++i){if(0==m%i)break;)if(i==m)returntrue;elsereturnfalse;)intmain(void)finti,val,j;scanf("%d”,&val);for(i=2;i〈=val;++i){if(IsPrime(i))printf("/d\n”,i);)return0;)/*在Vc++6.0中的输出结果是:20235711131719Pressanykeytocontinue#include<stdio.h>intmain(void){inta,b,c,d;a—2,b—3;c=(a++)+(a++)+(a++);d=(++b)+(++b)+(++b);printf("%d%d%d%d\n”,a,b,c,d);return0;在Vc++6.0中的输出结果是:56616Pressanykeytocontinue*/#include<stdio.h>structStudent(intage;charsex;charname[100];}i 〃分号不能省intmain(void)(structStudentst={20,'F',"小娟"};printf("%d%c%s\n",st.age,st.sex,);return0;)/*在Vc++6.0中的输出结果是:20F小娟Pressanykeytocontinue*/#include<stdio.h>structStudentcharsex;charname[100];};〃分号不能省intmain(void){structStudentst={20,'F',"小娟"};structStudent*pst=&st;printf(z/%d%c%s\n",st.age,st.sex,);printf("%d%c%s\n",pst->age,pst->sex,pst->name);〃pst->age转化成(*pst).age等价于st.agereturn0;在Vc++6.0中的输出结果是:20F小娟20F小娟Pressanykeytocontinue*/ttinclude<stdio.h>intmain(void)inta,b,c;scanf("%d,%d,%d",&a,&b,&c);printf("%d\n",(a>b?a:b)>c?(a>b?a:b):c);return0;在Vc++6.0中的输出结果是:5,4,99Pressanykeytocontinue*/#include<stdio.h>intmain(void)(inti;scanf("%d",&i);if(i%2==0)printf("偶数");elseprintf("奇数");return0;}/*在Vc++6.0中的输出结果是:20偶数Pressanykeytocontinue#include<stdio.h>intmain(void)(inta=2,b=-l,c=2;if(a<b)if(b<0)c=0;elsec+=l;printf("%d\n”,c);return0;)/*在Vc++6.0中的输出结果是:2Pressanykeytocontinuettinclude<stdio.h>intmain(void)intw=4,x=3,y=2,z=l;printf("%d\n”,(wくx?w:zくy?z:x));return0;/*在Vc++6.0中的输出结果是:1Pressanykeytocontinuettinclude<stdio.h>intmain(void)finta=l,b=2,c=3;if(a>c)b=a;a=c;c=b;〃这是三个语句,if只能控制ー个语句printf("%d%d%d\n，，>a,b,c);return0;)/*在Vc++6.0中的输出结果是:322Pressanykeytocontinue#include<stdio.h>inta,b,c,x;scanf("%d%d%d”,&a,&b,&c);if(a>b)x=a;elsex=b;if(x<c)x=c;printf("最大的数是%d\n",x);return0;)/*在Vc++6.0中的输出结果是:592最大的数是9Pressanykeytocontinueinclude<stdio.h>intmain(void)Iinta=1;printf("%d\n”,(a=3*a,3+a));return0;在Vc++6.0中的输出结果是:6Pressanykeytocontinueinclude<stdio.h>intmain(void){inta=1;printf("%d\n”,(a=3*a,3*a));return0;)/*在Vc++6.0中的输出结果是:9Pressanykeytocontinueinclude<stdio.h>intc;〃当输入多个字符时,多printf("Enteracharacter:");〃当输入多个字符时,多余字符作废c=getchar();printf("%c:%d\n",c,c);return0;)/*在Vc++6.0中的输出结果是:Enteracharacter:aa:97Pressanykeytocontinueinclude<stdio.h>intmain(void)printf(，z%s%%\n","china");return0;)/*在Vc++6.0中的输出结果是:china%include<stdio.h>intmain(void){inti,j;for(i=l;i<=9;++i)for(j=l；j〈=i；++j)printfC，%ld*%ld=%2d\n，/,i,j,i*j);printf(〃、n〃);return0;)/*在Vc++6.0中的输出结果是:1*1=12*1=22*2=43*1=33*2=63*3=94*1=44*2=84*3=124*4=165*1=55*2=105*3=155*4=205*5=256*1=66*2=126*3=186*4=246*5=306*6=367*1=77*2=147*3=217*4=287*5=357*6=427*7=498*1=88*2=168*3=248*4=328*5=408*6=488*7=568*8=649*1=99*2=189*3=279*4=369*5=459*6=549*7=639*8=729*9=81Pressanykeytocontinuettinclude<stdio.h>〃只定义了一个数据类型,没定义变量,数据类型名字为enumWeekdayenumWeekday〃enum是枚举MonDay,TuesDay,WednesDay,ThursDay,FriDay,SaturDay,SunDay)；intmain(void){enumWeekdayd