将代码合并进main.c

main.c

@@ -80,7 +80,7 @@ double Max(double a, double b){
  */
 double sigmoid(double x){
     //请补全sigmod函数的计算结果
-
+    return 1 / (1 + exp(-x));
 }
 
 
@@ -143,7 +143,16 @@ Sample * getTestData(const char * filename){
  * @param size 样本大小
  */
 void printData(Sample * data, int size){
-   int count 
+    if (data != NULL) {
+        int count = 0;
+        while (count<size) {
+            printf("%lf %lf %lf\n", data->in[count][0], data->in[count][1], data->out[count][0]);
+            count++;
+        }
+    }
+    else {
+        printf("sample is empty!\n");
+    }
 }
 
 /**