What are the rules of basketball?

First, the main rules of basketball match (1) foul and foul punishment. The referee should judge whether it is illegal according to the following basic principles: 8? The spirit and intention of the rules and the need to adhere to the integrity of the game. ? 8? Use the consistency of common sense in every game, remember the players' abilities and their attitudes and behaviors in the game. ? 8? 5. Keep a balance between competition control and smooth competition, and have a "feeling" about what the participants are trying to do and what is right for the competition. The penalty is that the offending party loses the ball right, and the opposing team throws the foul ball in the place closest to the foul, except the place directly behind the rebound; If the ball goes into the basket but the shot is invalid, the subsequent throw-in ball should be out of bounds on the extension line of the penalty line. Referee's sentencing procedure: whistle and stop watch gesture ~ foul gesture ~ new attack direction. 1, dribbling violation (twice dribbling or illegal dribbling) The concept of dribbling: the technique of a player bouncing off the ground with one hand holding the ball in place or moving. Once the ball rests on one or both hands, dribbling stops. You can't turn your wrist to dribble (dribble), you can't slap the ball with both hands at the same time, and you can't dribble twice. Missed catch: At the beginning or end of dribbling, a player accidentally lost the ball and then regained control of it. Missing is not dribbling. "Three don't touch" can touch the ball again. 2. Determination of the center foot for holding the ball (walking) violation (1) The first type: the player touches the ground with both feet to catch the ball (in situ), and either foot can be used as the center foot. The moment one foot is lifted, the other foot becomes the center foot. The second type: the player catches the ball while moving or dribbling. The first situation: when the player catches the ball, one foot touches the ground and the other foot touches the ground, and the original foot becomes the center foot; If a player jumps on the foot that touches the ground and both feet touch the ground at the same time, neither foot can be the center foot. The second situation: when the player catches the ball, his feet are off the ground: a, both feet land at the same time, and either foot can be used as the center foot; B, two feet landed successively, and the foot that landed first was the central foot; C. Jump up with one foot on the ground. This foot touches the ground at the same time, and neither foot can be the center foot. (2) After holding the ball to determine the center foot, the player can lift the center foot when passing or shooting, but he must not fall back to the ground before the ball leaves his hand; When a player starts dribbling, he is not allowed to lift the center foot until the ball leaves his hand. When neither foot can be used as the center foot, if the player passes the ball or shoots, he can lift it with one foot or both feet, but it is not allowed to fall back to the ground before the ball leaves his hand; If you dribble, you can't lift either foot until the ball leaves your hand. 3. There are three necessary conditions for the ball to return to the backcourt (1): a, control the team to return to the backcourt; B, it must be to control the team to make the ball enter the backcourt from the frontcourt; C, the first to touch the ball in the backcourt is definitely the player who controls the team. (2) Several violations when the ball returns to the backcourt: the player takes off from the frontcourt, jumps directly from the middle in the air to get the control ball, and falls back to the backcourt with one foot or both feet; Players jump in the air in the frontcourt and then fall in the backcourt; Players take off from the backcourt, catch the ball from the same team's frontcourt in the air and land in the frontcourt; When a player crosses the center line, he catches the ball from the frontcourt and so on. (3) It is not illegal to return the ball to the backcourt: the ball returned to the backcourt by the defending party can be taken back by either side; The dribbler dribbles from the backcourt to the frontcourt near the center line, and then turns and dribbles. Even if the body touches the frontcourt ground, the ball is carried on the backcourt ground and continues to dribble forward. The ball bounced back to the backcourt after shooting in the frontcourt. 4, the ball is out of bounds, throwing the ball out of bounds is a foul. The ball is out of bounds when it touches an out-of-bounds player or anyone else, the ground or anything on or off the boundary, the backboard pillar or the back. 5. Time violation (1)3-second violation: The game clock has started. When a team controls the live broadcast of the ball, the players must not stay in the opponent's penalty area for more than 3 seconds. When a player stays in the penalty area for nearly 3 seconds, he can be allowed to dribble to the basket to shoot. Continuous throwing and grabbing are not limited by the 3-second rule. When the player is ready to leave the restricted area or the player is shooting, the ball is leaving or has left his hand, it is not a 3-second violation. (2)5-second violation: the penalty taker failed to shoot 5 seconds after the referee handed the ball; The player who threw the foul ball did not throw the ball into the field within 5 seconds after the referee submitted the ball, or did not put the ball where he could handle it; The players who hold the ball are strictly guarded, and do not pass, throw, roll or dribble for 5 seconds. (3)8-second violation: When the attacking player controls the ball in the backcourt, the team fails to make the ball enter the frontcourt within 8 seconds. (4)24-second violation: When a player controls a live ball on the court, the team must finish shooting within 24 seconds. The following conditions must be met to form a lens: 8? The ball must leave the hand before the device rings for 24 seconds. ? 8? After the ball leaves the hand, it must contact the ring 24 seconds before the device rings. When the shot put is shot at the end of 24 seconds and the ball has left its hand and is flying in the air, the device rings for 24 seconds. If the ball goes into the basket, it is a hit. If the ball touches the basket, but does not enter the basket, then the ball is still alive and there is no foul. The game should continue without interruption. Count continuously for 24 seconds from the breakpoint in the following situations: the ball is still thrown out of bounds by the original control; The referee stopped the game to protect the injured athletes. 6. Interference with the ball violation (1) When shooting, when the ball falls in flight and is completely on the level of the hoop, neither the attacker nor the defender can touch the ball. (2) When the ball is in the basket, the defender shall not touch the ball or the basket. (3) When the ball touches the basket, the offensive and defensive players are not allowed to touch the basket or backboard, but they can touch the ball. The attacking player fouls and the shot is invalid; The defender fouls, even if the ball doesn't score, the attacker will be awarded a score. 7. It is illegal to kick the ball with your feet and deliberately hit the ball with your fists, hit the ball with your fists or block the ball with any part of your legs, and it is not illegal to touch the ball by mistake with your feet or legs. 8. Jump ball-The rule of alternately controlling the ball is to throw the ball on the field, not jump ball to bring the ball into the game. In the case of non-halftime and the start of the deciding game, the two teams will alternately throw the ball into the field at the nearest place to the next jump. The team that didn't get the control ball at the first jump ball at half-time or in the deciding game should start the alternation procedure and award the ball to the team that threw the ball at the nearest place where the next jump ball occurred. When the referee gives the ball to the player who throws the ball into the line, when the outgoing ball touches the player who throws the ball into the line or the team who throws the ball into the line commits a foul, the ball control procedure starts and ends alternately. (2) Fouls and penalties for fouls are violations of rules, including physical contact and violations of sports ethics. Fouls can be divided into personal fouls and technical fouls. Sentencing procedure: whistle and make a watch stop gesture ~ use gestures to indicate the number, nature and penalty of the fouler. Penalty: the opponent throws a foul ball; If the foul team accumulates 4 times per quarter, it will make 2 free throws; If the infringed player is shooting, he will get 2 or 3 points and be punished again; If you miss it, you will be punished twice or three times.