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我已經讀取了一個以'\ r'結尾的字符作爲'\ r'的CSV文件,讀取操作成功完成,但是當我將讀取的行傳遞給while(getline(ss,arr2,','))
用於分隔逗號..它爲第一行工作正常,但所有下一次迭代都是空的(即)它一直未能分隔字符串中的逗號。使用getline()時分隔逗號不起作用
int main()
{
cout<<"Enter the file path :";
string filename;
cin>>filename;
ifstream file;
vector<string>arr;
string line,var;
stringstream content;
file.open(filename.c_str(),ios::in);
line.assign((std::istreambuf_iterator<char>(file)),
std::istreambuf_iterator<char>());
file.close();
string arr2;
stringstream ss;
content<<line;
//sqlite3 *db;int rc;sqlite3_stmt * stmt;
int i=0;
while (getline(content,var,'\r'))
{
ss.str(var);//for each read the ss contains single line which i could print it out.
cout<<ss.str()<<endl;
while(getline(ss,arr2,','))//here the first line is neatly separated and pushed into vector but it fail to separate second and further lines i was really puzzled about this behaviour.
{
arr.push_back(arr2);
}
ss.str("");
var="";
arr2="";
for(int i=0;i<arr.size();i++)
{
cout<<arr[i]<<endl;
}
arr.clear();
}
getch();
}
在什麼上面了錯誤...我什麼也看不到,現在:(
使用本地'字符串流SS;'while循環或'ss.clear內()'重置流狀態 –
@DieterLücking,只是出於好奇沒有按ss.str(「」)清除流? –
@DieterLücking,That worked :) –