C语言编程实例

1、 第3章 请你参考前请修改下，或者至少看明白，2#include "string.h"#include "stdio.h"main() char str50; int i,j=0,k=0,length=0; char str150; printf("input words:n"); scanf("%s",str); for(i=0;stri!='0'i+) if(stri>='A' && stri<='Z') str1j=stri; j+;

2、 else if(stri>='a' && stri<='z') str1j=stri-32; j+; length = strlen(str1); for(k=length-1;k>=0;k-) printf("%c",str1k); 截图：4#include "stdio.h"main() int num,i,j,line=0; printf("Enter a number:n"); scanf("%d",&num); if(num<

3、;=1) printf("Please Enter"); return(1); for(i=2;i<num;i+) for(j=2;j<i;j+) if(i/j*j=i) break; if(j=i && i%10!=9) printf("%d,",i); line+; if(line=10) printf("n"); line=0; 截图：7#include "stdio.h"main()int n = 0;int a,b;printf("Enter a number:n&q

4、uot;);scanf("%d",&n);printf("1gt2gt5gn");printf("-n");for(a=0;a<=n;+a) for(b=0;b<=n;+b) if(a+2*b+(n-a-b)*5)=100) printf("%dt%dt%dn",a,b,(n-a-b); 截图： 第4章2#include "stdio.h"main() char * s; char table128; int i; printf("please input a st

5、ring:"); scanf("%s",s); printf("n"); for(i = 0;i < 128;i+) tablei = '0' for(i=0;si!= '0'i+ ) if(si >= 48 && si <=57) | (si >= 65 && si <= 90)| (si >= 97 && si <= 122) tablesi = si; for(i = 0;i < 128;i+) if(table

6、i != '0') printf("%c",tablei); 截图：8#include <stdio.h> void permutation(char a, int m, int n) int i,j; char t; if (m<n-1) permutation(a, m+1, n); for (i=m+1;i<n;i+) t=am; am=ai; ai=t; permutation(a, m+1, n); t=am; am=ai; ai=t; else if(a0>a1&&a1>a2&&

7、a3>a4&&a4>a5&&a0>a3&&a1>a4&&a2>a5) printf("%c%c%cn%c%c%cnn",a0,a1,a2,a3,a4,a5); int main() char a="123456" permutation(a, 0,6); return 0; 截图： 第5章5#include "stdio.h"int fun(char str1100)int i,j=0;for(i=0;str1i!='0'i+

8、) if(str1i='i' && str1i+1='s') | (str1i='I' && str1i+1='S') str1i='b' str1i+1='e' i+; j=1; else str1i=str1i; return j;main() char str100; printf("Enter String :n"); scanf("%s",str); if(fun(str)=0) printf("this s

9、tring not include 'is'"); else printf("%s",str); 截图： C 语言作业#include "stdio.h" main() FILE *fp,*result; char ch='0' char word100020; int count_word1000=0; int i=0,j=0,k=0,flag=2,total=0; float percent; clrscr(); if(fp=fopen("english.txt","r"

10、;)&&(result=fopen("result.txt","w")=NULL) printf("Can't open filen"); printf("Press any key to exit."); getch(); exit(0); printf("nPlease wait."); while(!feof(fp) ch=fgetc(fp); if(ch>='a'&&ch<='z'|ch>='

11、;A'&&ch<='Z') if(ch>='A'&&ch<='Z') ch+=32; flag=0; wordij=ch; j+; else flag+; if(flag=1) total+; wordij='0' count_wordi+; for(k=0;k<i;k+) if(strcmp(wordi,wordk)=0) count_wordk+; count_wordi=0; i-; break; i+; j=0; fprintf(result,"wo

12、rds count percentn"); fprintf(result,"-"); for(k=0;k<i;k+) fprintf(result,"n%-20s",wordk); fprintf(result,"%-10d",count_wordk); percent=100.0*count_wordk/total; fprintf(result,"%.2f%",percent); fprintf(result,"nnThis text has %d word(s).",tot

13、al); fprintf(result,"nAnd here has %d different word(s).",i); fclose(fp); fclose(result); printf("OK!n"); printf("Press any key to exit."); getch(); printf("Bye bye!"); exit(0); 英语原文：Chinese police shot and killed a knife-wielding man who injured three people

14、and took another hostage in a Carrefour store in the southwestern city of Kunming after a four-hour standoff on Saturday.The hostage, a nurse sent there to treat the injured, was rescued unharmed, a spokesman for the Kunming Municipal Public Security Bureau told reporters. The injured people, includ

15、ing two customers and a salesperson, are being treated at a local hospital. One of them is in critical condition. The 39-year-old man, Lu Zhiwen, was believed to have been disappointed in a love affair, and that's probably why he staged the attack, the spokesman said. "He threatened to kill

16、 the hostage if his girl friend doesn't go to the store to see him," he said. "Police had to shoot and kill him to ensure the hostage safety when the nurse was put in great danger." Lu had criminal record, he said, providing no more details. Police are further investigating the in

17、cident. Witnesses and police said the man wielding a knife went into the French retail outlet at about 9:37 a.m. and suddenly began hacking at customers. He injured three people on the second floor, took another one hostage on the third floor and hid in an office. A female nurse was sent inside the

18、store to treat the injured, police said the man then took the nurse hostage and released the other person he had been holding. The man was shot dead at about 1:30 p.m. The attack took place in the Carrefour store on Longquan Road in the northern suburbs of Kunming, capital of Yunnan Province. Carref

19、our has opened four stores in Kunming since 2002. The Longquan store opened on Sept. 8, 2006 as the fourth outlet in the city. It spans more than 7,000 square meters.Since entering the Chinese market in 1995, Carrefour has opened 118 stores on the Chinese mainland. It employs almost 50,000 people.统计

20、结果：words count percent-chinese 3 0.95%police 5 1.58%shot 2 0.63%and 9 2.84%killed 1 0.32%a 11 3.47%knife 2 0.63%wielding 2 0.63%man 5 1.58%who 1 0.32%injured 5 1.58%three 2 0.63%people 4 1.26%took 4 1.26%another 2 0.63%hostage 6 1.89%in 11 3.47%carrefour 4 1.26%store 5 1.58%the 31 9.78%southwestern

21、1 0.32%city 2 0.63%of 4 1.26%kunming 4 1.26%after 1 0.32%four 2 0.63%hour 1 0.32%standoff 1 0.32%on 6 1.89%saturday 1 0.32%nurse 4 1.26%sent 2 0.63%there 1 0.32%to 8 2.52%treat 2 0.63%was 5 1.58%rescued 1 0.32%unharmed 1 0.32%spokesman 2 0.63%for 1 0.32%municipal 1 0.32%public 1 0.32%security 1 0.32

22、%bureau 1 0.32%told 1 0.32%reporters 1 0.32%including 1 0.32%two 1 0.32%customers 2 0.63%salesperson 1 0.32%are 2 0.63%being 1 0.32%treated 1 0.32%at 4 1.26%local 1 0.32%hospital 1 0.32%one 2 0.63%them 1 0.32%is 1 0.32%critical 1 0.32%condition 1 0.32%year 1 0.32%old 1 0.32%lu 2 0.63%zhiwen 1 0.32%b

23、elieved 1 0.32%have 1 0.32%been 2 0.63%disappointed 1 0.32%love 1 0.32%affair 1 0.32%that 1 0.32%s 1 0.32%probably 1 0.32%why 1 0.32%he 6 1.89%staged 1 0.32%attack 2 0.63%said 5 1.58%threatened 1 0.32%kill 2 0.63%if 1 0.32%his 1 0.32%girl 1 0.32%friend 1 0.32%doesn 1 0.32%t 1 0.32%go 1 0.32%see 1 0.32%him 2 0.63%had 3 0.95%shoot 1 0.32%ensure 1 0.32%safety 1 0.32%when 1 0.32%put 1 0.32%great 1 0.32%danger 1 0.32%criminal 1 0.32%record 1 0.32%providing 1 0.32%no 1 0.32%more 2 0.63%details 1 0.32%further 1