1communication-communis-1- 2342341-2-3-51 -2-3-61.2. 789ABCDE-10111213-,-14151) 2)3)4)5)6)7)-8)9)10)16-1718 1921content analysis2223(Behavior Science)241-w-2 B=f (PE)B=behavior P=person E=environment f=functiongatekeeper)- 3-4 25-empirical school)critical school)2612 (FTF)34272829 30mp331121 2 331- 2 34432206070-1-234333435 12 3 363738391 2-3-401234541-w-w Who- Says what In which channel To whom- With what effect -42434445-4647: 1. 2. 3.48123Mass4567-4950-123 51521-2353-541255 561234:57-58591, 231-23123-60