怎样才能画出更多的线条？(Python sympy)

pip install sympy

import sympy as sp
import matplotlib.pyplot as plt

# 创建一个符号变量t
t = sp.symbols('t')

# 定义线条的参数方程
x = sp.cos(t)
y = sp.sin(2*t)

# 生成t的取值范围
t_values = sp.linspace(0, 2*sp.pi, 100)

# 计算x和y的值
x_values = [sp.N(x.subs(t, value)) for value in t_values]
y_values = [sp.N(y.subs(t, value)) for value in t_values]

# 绘制线条
plt.plot(x_values, y_values)
plt.xlabel('x')
plt.ylabel('y')
plt.title('More Lines')
plt.show()