commit

DataFusion/src/com/zskk/control/ViewController.java

@@ -68,7 +68,7 @@ public class ViewController extends Controller {
 		// 创建从文件读取数据的FileInputStream流
 		FileInputStream fin;
 		String s = null;
-		String d = null;
+		String d = "";
 
 		try {
 			fin = new FileInputStream(fin_floder);