#include double C2F(double cel); int main(void) { int c; printf("摂氏 華氏\n"); printf("----------\n"); for(c=0;c<=100;c++){ printf("%4d %5.2f\n", c, C2F((double)c) ); } return 0; } double C2F(double cel) { return cel * 9.0 / 5.0 + 32.0; }