C语言之输入月收入，输出该月应纳税额-2019(简易版)

#include
#include
#include<string.h>#define s1 0.03  //税率b <= 3000
#define k1 0     //速算扣除数b <= 3000#define s2 0.1   //税率3000 < b <= 12000
#define k2 210  //速算扣除数3000 < b <= 12000#define s3 0.2   //税率12000 < b <= 25000
#define k3 1410  //速算扣除数12000 < b <= 25000#define s4 0.25  //税率25000 <