diff --git a/2017-hellojs_overflow.js b/2017-hellojs_overflow.js
new file mode 100644
index 0000000..81e8c84
--- /dev/null
+++ b/2017-hellojs_overflow.js
@@ -0,0 +1,19 @@
+//賴彥嘉
+//getBMI 
+function getBMI(height, weight){
+  return weight/(height*height);
+}
+console.log(getBMI(1.88, 74));
+// getMessage
+var message ; 
+function getMessage(height, weight){
+  return weight/(height*height);
+}
+var bmi= getMessage(1.7,74)
+if(bmi<18.5){
+   message = '過輕';}
+	else if(bmi>24){
+   			 message='過重' }
+			else{
+				message='正常'}
+console.log(message); //
diff --git a/2017.js b/2017.js
new file mode 100644
index 0000000..81e8c84
--- /dev/null
+++ b/2017.js
@@ -0,0 +1,19 @@
+//賴彥嘉
+//getBMI 
+function getBMI(height, weight){
+  return weight/(height*height);
+}
+console.log(getBMI(1.88, 74));
+// getMessage
+var message ; 
+function getMessage(height, weight){
+  return weight/(height*height);
+}
+var bmi= getMessage(1.7,74)
+if(bmi<18.5){
+   message = '過輕';}
+	else if(bmi>24){
+   			 message='過重' }
+			else{
+				message='正常'}
+console.log(message); //