如何在scipy.integrate.RK45中输入时间步长

from scipy.integrate import RK45

def my_function(t, y):
    # 定义待积分的函数
    return y * t

initial_condition = 0.0  # 初始条件
start_time = 0.0  # 积分起始时间
end_time = 10.0  # 积分结束时间
time_step = 0.1  # 时间步长

rk45 = RK45(my_function, start_time, initial_condition, end_time)

rk45.step(time_step)

from scipy.integrate import RK45

def my_function(t, y):
    # 定义待积分的函数
    return y * t

initial_condition = 0.0  # 初始条件
start_time = 0.0  # 积分起始时间
end_time = 10.0  # 积分结束时间
time_step = 0.1  # 时间步长

rk45 = RK45(my_function, start_time, initial_condition, end_time)

while rk45.t < end_time:
    rk45.step(time_step)

print(rk45.y)