2079 - P395 6
P395 6
Input
a single character
Output
int value
若输入是非数字时，，输出#号，后面需要增加回车符
若输入数字时，输出对应的int value，后面需要增加回车符
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Examples
Input
k
Output
#
Solution C
#include<stdio.h> int main() { int a,b; char c; scanf("%c",&c); if(c>=48&&c<=57) { a=c-48; printf("%d\n",a); } else printf("#\n"); }
Solution C++
#include<iostream> using namespace std; int main() { int a; char b; cin>>b; while (cin) { if (b>='0'&&b<='9') { a=b-'0'; cout<<a<<endl; } else cout<<"#回车"<<endl; cin>>b; } return 0; }