分析程序写出结果.doc

五、阅读程序（26）(一). 写出下列程序的输出结果是(52)1#include using namespace std; int main( ) int i=1,sum=0;dosum += i;i+;while(i=100)cout”sum=”sumendl;return 0;_sum=5050_2. #include using namespace std; int main( ) char str1 =”I love china!”,str220,*p1,*p2;p1=str1;p2=str2; for(;*p1!=0;p1+,p2+) *p2=*p1;*p2=0; p1=str1;p2=str2;cout”str1 is:”p1endl;cout”str2 is:”p2endl;return 0;_str1=”I love china!”_str2=”I love china!”_第 1 页 共6页#includeusing namespace std;int main()char c1=a,c2=d,c3=f; c1+=2; c2+=2; c3+=2;coutc1c2c3endl; return 0;运行结果：cfh 2. 写出下列程序的输出结果。 #includeusing namespace std;int i,j,m,n;int main() i=5;j=6;m=+i+j+;n=(+i)+(+j)+m;coutitjtmtnendl;return 0;运行结果：7 8 12 27 3. 写出下列程序的输出结果。#includeusing namespace std;int main()const int n=5; int an=9,6,3,4,5,i,t;for(i=0;in/2;i+)t=ai;ai=an-i-1;an-i-1=t;for(i=0;in;i+) coutai” “;coutendl;return 0;运行结果：5 4 3 6 9 1struct abc int a, b, c; ; main() struct abc s2=1,2,3,4,5,6;int t;couts0.ct;t=s0.a+s1.b;coutt;_3_6_2. void swap(int *p1,int *p2) int *p; p=p1;p1=p2;p2=p; main() int a=3,b=5; int *pt1,*pt2;pt1=&a;pt2=&b;cout*pt1,*pt2endl;swap(pt1,pt2);cout*pt1,*pt2endl;_3.5_3.5_1、第 14 页 共14页#includeint t() static int i=100; i+=5; return i;void main() cout”i=”t()n; cout”i=”t()n;运行结果：i=105 i=1002、#includevoid swap1(int *p1, int *p2) int t; t=*p1;*p1=*p2;*p2=t;void swap2(int &p1, int &p2) int *t; t=p1;p1=p2;p2=t;void main(void) int x,y;int a,b;x=10,y=20;swap1(&x,&y);a=100,b=200;swap2(a,b);coutx=x,y=yn;couta=a,b=bn;运行结果是: x=20,y=10a=100,b=2001、#includeint t() static int i=100; i+=5; return i;void main() cout”i=”t()n; cout”i=”t()n;运行结果：i=105i=1102、#includevoid main(void) int i, x,num; cinx; while(x) num=x%10; coutnum; x=x/10; 若输入x为145734则输出为：4375413#includestruct s int m;float x;void swap(s s1, s s2) s t;t=s1;s1=s2;s2=t; s fun(s s1, s s2)s t;t.m=s1.m+s2.m;t.x=s1.x+s2.x;return t;void main()s r1=100,250.5,r2=200,350.5;swap(r1,r2);cout”r1.m=”r1.mt”r1.x=”r1.xn;cout”r2.m=”r2.mt”r2.x=”r2.xn;s sum;sum=fun(r1,r2);cout”sum.m=”sum.mt”sum.x=”sum.xn;执行程序后输出：r1.m=100 r1.x=250.5r2.m=200 r2.x= 350.5sum.m=300 sum.x=6014、include “iostream.h”void main()static char a=”Radio&TV University”;static int b8=6,8,9,2;char *p=a;int *q;q=b; coutendl;couta1,*p,*(a+6),p2endl;*q=*(q+1)+2;*(q+2)=*q*2;q+;cout b5,*b,b1, *q+;执行程序后输出：a,R,T,d0,10,8,81 #include using namespace std; int main() char c1=A,c2=D,c3=k; c1+=2; c2+=3; c3-=4; coutc1“ ”c2” “c3endl; return 0; _C_G_g_2. #includeusing namespace std;int main() int i,j,m,n;i=361;j=i/100;m=i%10;n=(i%100)/10;if(i=j*j*j+m*m*m+n*n*n) couti”是水仙花数”endl;else couti”不是水仙花数” endl;return 0;_361不是水仙花数_3 #includeusing namespace std;int main()const int n=9;int an=9,6,3,4,5，45，32，78，21,i,t;for(i=0;in/2;i+)t=ai;ai=an-i-1;an-i-1=t;for(i=0;in;i+) coutai” “;coutendl;return 0;输出结果是：21 78 32 45 5 4 3 6 9 4有如下程序：#include using namespace std;class A public: A( ) cout A; ;class B public: B( ) cout B; ;class C : public A B b;public:C( ) cout C; ;int main( ) C obj; return 0; 执行后的输出结果是:ABC5include using namespace std;void swap(int *p1,int *p2) int *p; p=p1;p1=p2;p2=p; main() int a=3,b=5; int *pt1,*pt2;pt1=&a;pt2=&b;cout*pt1,*pt2endl;swap(pt1,pt2);cout*pt1,*pt2endl;运行结果：3，5 3，56.#include #include using namespace std;int main( )cout.fill(*);cout.width(6);cout.fill(#);cout 123 endl;return 0;运行结果：#1233#includeusing namespace std;int age(int);int main( ) coutage(3)endl; return 0;int age(int n) int c; if(n= =1) c=8; else c=age(n-1)+2; return (c);运行结果：124#includeusing namespace std;int main( ) int a5=3,5,7,9,6; int i,*p=a; for(p=a;p(a+4);p+)cout*p” “; coutendl; return 0; 运行结果：3 5 7 91、#includeusing namespace std;int main() float add(float,float); float a=12.68,b=56.45; c=add(a,b); cout”sum=”cendl;float add(float x,float y) float z; z=x+y; return (z);运行结果sum=69.13：2、#includeusing namespace std;int age(int);int main( ) coutage(3)endl; return 0;int age(int n) int c; if(n= =1) c=8; else c=age(n-1)+2; return (c);运行结果：123、#includeusing namespace std;int main( ) int a5=3,5,7,9,6; int i,*p=a; for(p=a;p(a+4);p+)cout*p” “; coutendl; return 0; 运行结果：3 5 7 1#include using namespace std;int main( ) void fun(int,int);int i=2,x=5,j=7; fun(j,6); coutitjt x; return 0;void