excuse me,i have wrote the code below
var weapon = game.add.weapon(30, 'bullet10');
weapon.bulletKillType = Phaser.Weapon.KILL_DISTANCE;
weapon.bulletKillDistance = 1000;
//weapon.bulletSpeed = 500;
// weapon.fireRate = 600;
// weapon.bulletGravity.y = -300;
weapon.fireAngle = 180;
weapon.bulletAngleOffset = 0;
weapon.trackSprite(sprite, 5, 5, false);
weapon.bullets.dam = 30000;
weapon.bulletAngleVariance = 0;
console.log(weapon.fireAngle);
but hte fireAngle dose not work,the bullet never change its angel in the page,why? bug?
thank you