Initial commit: C language learning code

翁凯C语言/4/函数嵌套递归.c

@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+#include <stdbool.h>
+
+int jiecheng(int n);
+
+int main()
+{
+    int n;
+    printf("请输入一个整数：");
+    scanf("%d", &n);
+    printf("%d\n", jiecheng(n));
+    
+    return 0;
+}
+
+int jiecheng(int n)
+{
+    int sum = 1;
+    if (n == 1)
+        return sum;
+    else
+        sum = n * jiecheng(n-1);
+}