cin.getline在while循环中的错误

Question

#include<iostream> #include<string.h> using namespace std; int main() {     char *pWord;      char word[100],newWord[100];     int repeat,pCurrent;     cin>>repeat;     cin.ignore();     while(repeat--){         cin.getline(word,100);         cin>>pCurrent;          pWord=word+pCurrent;//移动位数          if(pCurrent>strlen(word))           cout<<"error input";         else       {         strncpy(newWord,pWord,strlen(word)-pCurrent/*去除前面的字符*/);         cout<<newWord;        }         cin.ignore();  }  return 0; }我认为输入：3abc def2def abc2会输出bc defef abc但是在第二次输入 def abc时还没有输入2就直接再次输出了bc def搞不懂是由于什么引发的