update

Code/dafen.c

@@ -0,0 +1,23 @@
+#include<stdio.h>
+
+int main()
+{
+	float a;
+	printf("请输入一个分数：\n");
+	scanf("%f", &a);
+	if(a <= 100 && a >= 90)
+	printf("A\n");
+	else if(a <= 90 && a >= 80)
+	printf("B\n");
+	else if(a < 80 && a >= 70)
+	printf("C\n");
+	else if(a < 70 && a >= 60)
+	printf("D\n");
+	else if(a < 60 && a >= 0)
+	printf("E\n");
+	else
+	printf("错误\n");
+
+
+	return 0;
+}

Code/test.c

@@ -1,8 +1,12 @@
-#include<stdio.h>
+#include <stdio.h>
 
 int main() 
 {
-	printf("hello world!\n");
+	
+	
+
+
+
 
 	return 0;
 }