((a >= (2 * 3.14159 * r)) And (x 5)) Or (Not b) 运行顺序： 1. 2 * 3.14159 * r 2. a >= (2 * 3.14159 * r) x 5 Not b 3. ((a >= (2 * 3.14159 * r)) And (x 5)) 4. ((a >= (2 * 3.14159 * r)) And (x 5)) Or (Not b)。
