增加测试用例,发布一版.可能是3.x最后一个relase版本

src/main/java/org/ansj/app/summary/TagContent.java

@@ -45,7 +45,7 @@ public String tagContent(List<Keyword> keyWords, String content) {
 			beginOffe = sgw.offe + temp.length();
 		}
 
-		if (beginOffe < content.length() - 1) {
+		if (beginOffe <= content.length() - 1) {
 			sb.append(content.substring(beginOffe, content.length()));
 		}
 

src/test/java/org/ansj/test/TagWordTest.java

@@ -0,0 +1,22 @@
+package org.ansj.test;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.ansj.app.keyword.Keyword;
+import org.ansj.app.summary.TagContent;
+import org.junit.Test;
+
+public class TagWordTest {
+	@Test
+	public void test(){
+		TagContent tw = new TagContent("<em>", "</em>");
+		String content = "abc123中国人";
+		List<Keyword> keywords = new ArrayList<Keyword>();
+		keywords.add(new Keyword("中国人民", 1.0));
+		keywords.add(new Keyword("中国", 1.0));
+		keywords.add(new Keyword("abc", 1.0));
+		keywords.add(new Keyword("abc12", 1.0));
+		System.out.println(tw.tagContent(keywords, content));
+	}
+}