while(!infile.eof()) 什么作用while(!infile.eof()) //{infile>>s;if(infile.eof())break;a.push_back(s); // }

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while(!infile.eof())什么作用while(!infile.eof())//{infile>>s;if(infile.eof())break;a.push_back(s);//}whi

while(!infile.eof()) 什么作用while(!infile.eof()) //{infile>>s;if(infile.eof())break;a.push_back(s); // }
while(!infile.eof()) 什么作用
while(!infile.eof()) //
{
infile>>s;
if(infile.eof())break;
a.push_back(s); //
}

while(!infile.eof()) 什么作用while(!infile.eof()) //{infile>>s;if(infile.eof())break;a.push_back(s); // }
判断是否到达文件尾部,以防止出现文件读取错误.
希望能够解决你的问题,

while(!infile.eof()) 什么作用while(!infile.eof()) //{infile>>s;if(infile.eof())break;a.push_back(s); // } DO WHILE .NOT.EOF( ) while(scanf(%d,&m)!=EOF) while ( (scanf(%f,&a))!=EOF) while(scanf(%lf,&x)!=EOF) c++,while(getline(infile,line)) { while(getline(infile,line)) { istringstream is(line); is>>equipment[P].amount>>equipment[P].price>>equipment[P].num>>equipment[P].lyr>>equipment[P].sbmc>>equipment[P].ssbm>>equipment[P].gmsj>>equipment[P].syzk; P++;Q while(gets(a)!=EOF)和while(gets(a)==1)等价吗 ACM规则:while(scanf(%s%d,s,&n)!=EOF){//.}while(scanf(%s%d,s,&n)!=EOF){//.}//请问这句话到底是拿来干什么的? 求帮忙while语句改为for语句#include main (){while ((c=getchar()) =EOF)putchar(c);} saber 显示出现:EOF encountered before newline while reading list from channel while executing?有人知道什么原因不 while( scanf(%d%d%d,&a,&b,&c)!=EOF)是什么意思? 在VFP中,do while!eof();additem();alen(aa);giveup 比如:while(scanf(%d%d,&a,&b)!=EOF)这句是什么意思? 解释这个VF语句在题目要求逐条显示时答案的条件是这么写得do while .not.eof()其中.not .eof()有什么含义 while(fscanf(fp,%d%s%s%s%s%d,&p->num,p->name,p->author,p->pub,p->where,&p->count)!=EOF)重点是fscanf和EOF 关于C语言:while(scanf(%d%d%d,&n,&k,&m)!=EOF) 求精确解释这个循环的含义,尤其是关于“!=EOF”.前面只接触过类似while(n 关于C语言:while(scanf(%d%d%d,&n,&k,&m)!=EOF) 求精确解释这个循环的含义,尤其是关于“!=EOF”.前面只接触过类似while(n C语言中 while (!feof(stdin) && ch != ' ' && ch != EOF)什么意思?主要是!feof(stdin)是什么意思啊?