代码文本：

#include "stdio.h"

int main(int argc,char *argv[]){

double s,py;

printf("Please enter your monthly salary...npy=");

if(scanf("%lf",&py)==1 && py>0){

s=(py-5000)*0.03*12;

printf("Should pay personal income tax totaled %.2f yuan in 2025.n",s);

}

else

printf("Input error, exit...n");

return 0;

}

注：起征5000元/月，36000元/月以下税率3%。