具有matplotlib图的多色标记

import matplotlib.pyplot as plt

# 数据集1
x1 = [1, 2, 3]
y1 = [4, 5, 6]

# 数据集2
x2 = [1, 2, 3]
y2 = [7, 8, 9]

# 绘制散点图
plt.scatter(x1, y1, color='red', marker='o', label='Dataset 1')
plt.scatter(x2, y2, color='blue', marker='x', label='Dataset 2')

plt.legend()
plt.show()

import matplotlib.pyplot as plt

# 数据集1
x1 = [1, 2, 3]
y1 = [4, 5, 6]

# 数据集2
x2 = [1, 2, 3]
y2 = [7, 8, 9]

# 绘制折线图
plt.plot(x1, y1, color='red', label='Dataset 1')
plt.plot(x2, y2, color='blue', label='Dataset 2')

plt.legend()
plt.show()

import numpy as np
import matplotlib.pyplot as plt

# 生成随机数据
x = np.random.rand(100)
y = np.random.rand(100)
c = np.random.rand(100)

# 绘制散点图并使用颜色映射
plt.scatter(x, y, c=c, cmap='viridis')

plt.colorbar()
plt.show()