From e3071cd7723452161884a03e5b9ba1d7259d7375 Mon Sep 17 00:00:00 2001
From: wandoubaba517 <wandoubaba517@gmail.com>
Date: Tue, 5 Dec 2023 20:40:36 +0800
Subject: [PATCH] pizza.c

---
 c04_string/pizza.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 c04_string/pizza.c

diff --git a/c04_string/pizza.c b/c04_string/pizza.c
new file mode 100644
index 0000000..416af54
--- /dev/null
+++ b/c04_string/pizza.c
@@ -0,0 +1,18 @@
+/* pizza.c - 在比萨程序中使用已定义的常量 */
+#include <stdio.h>
+
+#define PI 3.14159265359
+
+int main(void)
+{
+    float area, circum, radius;
+
+    printf("What is the radius of your pizza?\n");
+    scanf("%f", &radius);
+    area = PI * radius * radius;
+    circum = 2.0 * PI * radius;
+    printf("Your basic pizza parameters are as follows:\n");
+    printf("circumference = %1.2f, area = %1.2f\n", circum, area);
+
+    return 0;
+}
\ No newline at end of file