string类型字符串切割

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#include <sstream>
int main()
{
string line="wo ai ni xiao yu hang ha ha;
string line1,line2,line3,line4,line5,line6,line7,line8;
istringstream is(line);
is>>line1>>line2>>line3>>line4>>line5>>line6>>line7>>line8;
cout<<line1<<"-"<<line2<<"-"<<line3<<"-"<<line4<<"-"<<line5<<"-"<<line6<<"-"<<line7<<"-"<<line8<<"-"<<endl;

}

输出的结果是wo-ai-ni-xiao-yu-hang-ha-ha

如果只是保留前六个line（line1-line6）

输出结果为：wo-ai-ni-xiao-yu-hang