优化了命名

C04-流程控制/loop.c

@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#define LEFT 1
+#define RIGHT 100
+
+int main()
+{
+    int i;
+    int sum = 0;
+    int start, end = 10;
+
+    i = LEFT;
+
+loop:
+    sum += i;
+    i++;
+
+    if (i <= RIGHT)
+        goto loop;
+
+    printf("sum = %d\n", sum);
+
+#if 0
+    i = LEFT;
+    for (;;)
+    {
+        sum += i;
+        i++;
+        if (i > RIGHT)
+            break;
+    }
+    printf("sum = %d\n", sum);
+#endif
+
+#if 0
+do
+{
+    menu();
+    scanf();
+    if()
+        something();
+} while ();
+
+#endif
+
+#if 0
+    printf("Please enter:\n");
+    scanf("%d", &start);
+
+    while (start <= end)
+    {
+        sum += start;
+        start++;
+    }
+
+    do
+    {
+        sum += start;
+        start++;
+    } while (start <= end);
+
+    printf("start = %d\n", start);
+    printf("end = %d\n", end);
+#endif
+
+#if 0
+    i = LEFT;
+    do
+    {
+        sum += i;
+        i++;
+    } while (i <= RIGHT);
+    printf("sum=%d\n", sum);
+#endif
+
+#if 0
+    while (i <= RIGHT)
+    {
+        sum += i;
+        i++;
+    }
+    printf("sum=%d\n", sum);
+#endif
+
+    exit(0);
+}