Harmonyos应用实例163：抛物线篮球投篮模拟

应用实例三：抛物线篮球投篮模拟

知识点：第二十二章《二次函数》—— 实际问题与二次函数。
功能：模拟投篮轨迹。学生调整出球角度和力度（参数），抛物线随之改变。判断是否能投进篮筐，系统计算最高点和落点，将数学参数转化为物理直觉。

@Entry @Component struct BasketballSim { @State private angle: number = 45 @State private speed: number = 12 @State private result: string = "" @State private isShooting: boolean = false @State private ballX: number = 0 @State private ballY: number = 0 @State private showTrajectory: boolean = true @State private maxHeight: number = 0 @State private landingX: number = 0 @State private flightTime: number = 0 @State private canScore: boolean = false