string line ;
line.erase(10,10+5);
line.erase(10,line.length());

line=line.erase(0,line.find_first_not_of(' '));//空格去头
line=line.erase(line.find_last_not_of(' ')+1);//空格去尾巴

cout<<line.find('0')<<endl;
cout<<line.rfind('a')<<endl;