一、引言自古至今,球类运动因为其参加范围之广、影响之大、人数之多而被称为全球重要的体育运动项目。球类运动因其娱乐性和休闲性而受到人民群众的广泛喜爱,丰富了人民群众的业余文化生活,是社会文化甚至是整个国家经济活动的重要组成部分。在数千年的发展中始终被人们广泛接受,证明了球类运动的魅力和生命力。 I. INTRODUCTION Since ancient times, ball games have been called the most important sports events in the world because of their wide scope of participation, influence and number. Due to its entertaining and recreational nature, ball games have been widely loved by the masses and enriched the amateur cultural life of the masses. It is also an important part of the social culture and even the economic activities of the entire country. In the development of thousands of years has been widely accepted by people, proved the charm and vitality of ball sports.