在门球比赛中,防守时经常会把球击(闪)到角区去,或在角区压边,因为角区离主战场(二、三门)较远,受攻面只有90°的范围。所以比较安全,是防守时选择的理想位置。然而正是由于离主战场较远,它的攻击力相对来说也较弱。为了充分发挥角球的作用,必须要有球接应,才能打擦边球奔袭,实现攻击对方或进门得分的战术目的。角球的接应位置在何处最佳呢?所谓最佳,应符合两个条件:第一,容易被击中,第二,击中后角球与接应球都不易出界。以20×15(米)的球场为例,在四角处有一球 A,设四线与一条对角线所成角为α,则 tan α=15/20=0.75;α≈36°52′>30°,见图示。若在这条对角线上的角球 A 和接应球 B,并沿球 B 的切线方向击打球 A,则球 A 的移动折线与四 In a goalkeeper game, the ball is often deflected (blinked) to the corner or pressed in the corner as the corner is farther away from the main battlefield (second and third) and the attack surface is only 90 ° range. So safer, is the ideal choice when defensive position. However, it is because of the farther away from the main battlefield that its attack power is relatively weaker. In order to give full play to the role of corner kicks, you must have a ball co-ordination in order to hit the side of the line raid, attack each other or goal to achieve the tactical goal. Corner where the best answer to the so-called position? The so-called best, should meet two conditions: first, easy to hit, second, hit the corner and catch the ball is not easy to go out of bounds. Taking a 20 × 15 (m) course as an example, there is a ball A at the four corners and an angle α between the four lines and one diagonal, tan α = 15/20 = 0.75; α≈36 ° 52 ’> 30 °, see illustration. If on this diagonal the corner ball A and the ball B are aligned and the ball A is hit in the tangential direction of the ball B,