#include<iostream> #include<fstream> #include<string> #define MAX 32 using namespace std; struct word { char name[MAX]; int num; struct word *next; }; void read(struct word*&head) { ifstream infile("test.txt"); infile>>noskipws; if(!infile){ cout<<"can not open!"<<endl; return; } char a,temp[MAX]; struct word *p; while(infile) { int i=0; infile.get(a); temp[0]=' '; while((a>='a'&&a<='z')||(a>='A'&&a<='Z')||temp[0]==' ') { if(a>='a'&&a<='z'||a>='A'&&a<='Z') { temp[i]=a; i++; } infile.get(a); if(infile.eof()) break; } temp[i]=' '; p=head->next; while(p) { if(!_stricmp(temp,p->name)){ p->num++; break; } p=p->next; } if(!p&&temp[0]!=' ') { p=new word; strcpy(p->name,temp); p->num=1; p->next=head->next; head->next=p; } } infile.close(); } void out(struct word*head,int n) { struct word *p; p=head->next; for(int i=0;i<n;i++) { cout<<"单词："<<p->name<<" 出现的次数："<<p->num<<endl; p=p->next; } } void output(struct word*&head) { ofstream output("out.txt"); struct word *p; p=head->next; while(p) { output<<"单词"<<p->name<<" 出现的次数"<<p->num<<endl; p=p->next; }
}
void sort(struct word*&head) { struct word *p,*q,*s,*l; q=head; p=head->next; s=p->next; p->next=NULL; while(s) { while(p&&p->num>s->num) { q=p; p=p->next; } q->next=s; l=s->next; s->next=p; s=l; p=head->next; q=head; } } void main() { struct word *head; head=new word; head->next=NULL; read(head); sort(head); out(head,10); output(head); }
文档：
Many of the women who have joined the American workforce since the 1970s have the computer revolution to thank, according to a new study.
A researcher, Dr Weinberg at Ohio State University, estimated that increased computer use in the workplace explains about 55 percent of the increase in the demand for women workers since the mid-1970s. Many of the new jobs are in blue-collar industries.
“Computers have opened up a lot of job opportunities for women that weren’t available before,” said Bruce Weinberg, author of the study and assistant professor of economics at Ohio State University.