用python代码画出红军长征到会宁会师的路线

可以使用Python中的Matplotlib库来绘制地图，并使用经纬度信息来标记路线。以下是一个简单的示例代码：

import matplotlib.pyplot as plt

# 经纬度数据
points = {
    "Ruijin": (116.0275, 25.8767),
    "Zunyi": (106.9373, 27.7063),
    "Xiangjiang": (109.7353, 28.3143),
    "Luding": (103.5872, 29.9111),
    "Dajing": (104.5431, 31.1313),
    "Maoxian": (103.8573, 31.6804),
    "Songpan": (103.8236, 32.6425),
    "Wenjiaba": (102.7532, 33.9022),
    "Maerkang": (102.0264, 31.8998),
    "LudingBridge": (103.5679, 29.9125),
    "Huiningshansi": (105.0541, 35.5865)
}

# 绘制地图
fig, ax = plt.subplots()
ax.set_xlim(100, 120)
ax.set_ylim(25, 40)
ax.set_aspect(aspect=1.5)
ax.set_xlabel("Longitude")
ax.set_ylabel("Latitude")

# 标记路线
route = ["Ruijin", "Zunyi", "Xiangjiang", "Luding", "Dajing", "Maoxian",
         "Songpan", "Wenjiaba", "Maerkang", "LudingBridge", "Huiningshansi"]
for i in range(len(route) - 1):
    start = points[route[i]]
    end = points[route[i + 1]]
    ax.plot([start[0], end[0]], [start[1], end[1]], color='r', linewidth=2)

# 标记地点
for name, point in points.items():
    ax.scatter(point[0], point[1], marker='o', color='b')
    ax.annotate(name, point)

plt.show()

输出的地图如下所示：