shoes1.c & shoes2.c

c05_expression/shoes1.c

@@ -0,0 +1,17 @@
+/* shoes1.c - 把鞋码转换成英寸 */
+#include <stdio.h>
+
+#define ADJUST 7.31
+
+int main(void)
+{
+    const double SCALE = 0.333;
+    double shoe, foot;
+
+    shoe = 9.0;
+    foot = SCALE * shoe + ADJUST;
+    printf("Shoe size (men's)\tfoot length\n");
+    printf("%10.1f\t%15.2f inches\n", shoe, foot);
+
+    return 0;
+}

c05_expression/shoes2.c

@@ -0,0 +1,22 @@
+/* shoes2.c - 计算多个不同鞋码对应的脚长 */
+#include <stdio.h>
+
+#define ADJUST 7.31
+
+int main(void)
+{
+    const double SCALE = 0.333;
+    double shoe, foot;
+
+    printf("Shoe size (men's)\tfoot length\n");
+    shoe = 3.0;
+    while (shoe < 18.5)
+    {
+        foot = SCALE * shoe + ADJUST;
+        printf("%10.1f\t%15.2f inches\n", shoe, foot);
+        shoe = shoe + 1.0;
+    }
+    printf("If the shoe fits, wearit.\n");
+
+    return 0;
+}