PoissonGroup

每dt=0.1ms进行一次脉冲实验，实验1s共1w次，期望得到250次脉冲，即每隔dt=0.1ms实验一次，每次得到的脉冲概率为0.025

from brian2 import *
start_scope()
seed(1)
delta_t = 0.1*ms
# Input Poisson spikes
inp = PoissonGroup(1, rates=250*Hz)
spike= 0
for i in range(10000):
    run(delta_t)
    if len(inp.spikes) != 0:
        spike += 1
print("模拟时间为:", 10000*delta_t)
print("脉冲次数为:", spike)

模拟时间为: 1. s
脉冲次数为: 242