src/com/chenlb/mmseg4j/Chunk.java
public int getCount() {
		if(count < 0) {
			count = 0;
			for(Word word : words) {
				if(word != null) {
					count++;
				}
			}
		}
		return count;
	}
public int getCount() {
		if(count < 0) {
			count = 0;
			for(Word word : words) {
				if(word != null) {
					count++;
				}
			}
		}
		return count;
	}
有多少个词，最多3个。