C Primer Plus 第三章编程练习

书籍C Primer Plus 的第三章编程练习，便于理解课本，有助于期末考试复习和背诵。可收藏，亦可使用后补充知识点，完善属于自己的知识框架。

C Primer Plus第三章编程练习

• 第一题
  • #include <stdio.h> int main() { // sizeof(int) = 4, 即int的区间为-2^31 ~ 2^31-1 int big_int = 2147483647; printf("big_int: %d\n", big_int); printf("big_int + 1: %d\n", big_int + 1); float big_float = 2.0E45; float small_float = 2.0E-145; printf("big_float: %f\n", big_float); printf("small_float: %f\n", small_float); return 0; }
• 第二题
  • #include <stdio.h> int main() { int c; printf("Please enter an ascii number:"); scanf("%d", &c); printf("The ascii character you enter is: %c", c); return 0; }
• 第三题
  • #include <stdio.h> int main() { printf("\aStartled by the sudden sound, Sally shouted\n"); printf("\"By the Great Pumpkin, what was that!\"\n"); return 0; }
• 第四题
  • #include <stdio.h> int main() { float f; printf("Enter a floating-point value: "); scanf("%f", &f); printf("fixed-point notation: %.6f\n", f); printf("exponential notation: %e\n", f); printf("p notation: %a\n", f); return 0; }
• 第五题
  • #include <stdio.h> int main() { // C语言输入double类型需要用"%lf" printf("enter your age:"); double age = 0.0; double sc = 3.156E7; scanf("%lf", &age); printf("seconds: %e\n", age * sc); return 0; }
• 第六题
  • #include <stdio.h> int main() { printf("enter the number of quart:"); double quart = 0.0; double piece = 3.0E-23; scanf("%lf", &quart); printf("the number of water molecules is: %e\n", 950 * quart / piece); return 0; }
• 第七题
  • #include <stdio.h> int main() { printf("Please enter your height (in inches): "); double height; scanf("%lf", &height); printf("Your height is %lf cm", height * 2.54); return 0; }
• 第八题
  • #include <stdio.h> int main() { printf("Please enter the number of cups: "); double cups, pingtuo, ounce, spoon, teaspoon; scanf("%lf", &cups); pingtuo = cups / 2; ounce = cups * 8; spoon = ounce / 2; teaspoon = spoon / 3; printf("the number of pingtuo is %lf.\n", pingtuo); printf("the number of ounce is %lf.\n", ounce); printf("the number of spoon is %lf.\n", spoon); printf("the number of teaspoon is %lf.\n", teaspoon); return 0; }