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#2
rjsp2017-05-10 15:45
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#include<iostream>
using namespace std;
void main(){
int i,chan=0;
char orig[100];
cout<<"input the numbers:";
cin>>orig;
for(i=0;orig[i]!='\0';i++)
chan=chan*2+(orig[i]-48);/*字符转换成十进制数*/
cout<<chan<<endl;;
}