📄 ch4_2.cpp
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//*********************
//** ch4_2.cpp **
//*********************
#include <iostream.h>
void main()
{
int val;
do{ //循环体
cout <<"please enter a number between 1 and 10\n";
cin >>val; //修改条件
if(val<1 || val>10)
cout <<"the number is not between 1 and 10\n";
}while( val<1 || val>10 ); //继续条件
cout <<"you entered a " <<val <<endl;
}
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