点开才可看......

python

a = int(input())
if a>0:
    print("positive")
elif a==0:
    print("zero")
else:
    print("negative")

C++

#include<iostream>
using namespace std;
int main(){
    int ipt;
    cin >> ipt;
    if(ipt>0){
        printf("positive");
    }else if(ipt==0){
        printf("zero");
    }else{
        printf("negative");
    }
}