1. To obtain a record from an input file . ��ij�������ļ��л��һ����¼��
2. Reads the next byte of data from this input stream. ������������ж�ȡ��һ���ֽڵ����ݡ�
3. The character code, considering the current keyboard states and input locale. �ַ����룬���ǵ�����ļ���״�������볡����
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n.
1. signal going into an electronic system
2. any stimulating information or event; acts to arouse action
3. a component of production; something that goes into the production of output v.
1. enter (data or a program) into a computer