python使用matplotlib:subplot绘制多个子图的示例

import matplotlib.pyplot as plt
plt.figure(figsize=(6,6), dpi=80)
plt.figure(1)
ax1 = plt.subplot(221)
plt.plot([1,2,3,4],[4,5,7,8], color="r",linestyle = "--")
ax2 = plt.subplot(222)
plt.plot([1,2,3,5],[2,3,5,7],color="y",linestyle = "-")
ax3 = plt.subplot(223)
plt.plot([1,2,3,4],[11,22,33,44],color="g",linestyle = "-.")
ax4 = plt.subplot(224)
plt.plot([1,2,3,4],[11,22,33,44],color="b",linestyle = ":")

import matplotlib.pyplot as plt
plt.figure(figsize=(6,6), dpi=80)
plt.figure(1)
ax1 = plt.subplot(221)
plt.plot([1,2,3,4],[4,5,7,8], color="r",linestyle = "--")
ax2 = plt.subplot(222)
plt.plot([1,2,3,5],[2,3,5,7],color="y",linestyle = "-")
ax3 = plt.subplot(212)
plt.plot([1,2,3,4],[11,22,33,44],color="g",linestyle = "-.")

import matplotlib.pyplot as plt
plt.figure(figsize=(6,6), dpi=80)

plt.figure(1)
ax1 = plt.subplot(221)
plt.plot([1,2,3,4],[4,5,7,8], color="r",linestyle = "--")
ax2 = plt.subplot(223)
plt.plot([1,2,3,5],[2,3,5,7],color="y",linestyle = "-")
ax3 = plt.subplot(122)
plt.plot([1,2,3,4],[11,22,33,44],color="g",linestyle = "-.")