#include int main(int argc, const char * argv[]) { //温度转换01 int fahr,celaius; int lower,upper,step; lower = 0;//温度表下限 upper = 300;//温度表上限 step = 20;//步长 fahr = lower; while (fahr <= upper) { celaius = 5 * (fahr - 32)/9; printf("%d\t%d\n",fahr,celaius); fahr = fahr + step; } printf("Hello, World!\n"); return 0; } #include int main(int argc, const char * argv[]) { //温度转换02 int fahr; for (fahr = 0; fahr <= 300; fahr = fahr + 20) { printf("%3d %6.1f\n",fahr,(5.0/9.0)*(fahr-32)); } printf("Hello, World!\n"); return 0; } #include #define LOWER 0//温度表下限 #define UPPER 300//温度表上限 #define STEP 20//步长 int main(int argc, const char * argv[]) { //温度转换03 int fahr; for (fahr = LOWER; fahr <= 300; fahr = fahr + STEP) { printf("%3d %6.1f\n",fahr,(5.0/9.0) * (fahr - 32)); } printf("Hello, World!\n"); return 0; } 本文来源：https://www.wddqw.com/doc/a1cb23eab84cf7ec4afe04a1b0717fd5370cb276.html