【python】使用matplotlib绘制多个子图时出现标题、轴标签等文字重叠的解决

当前代码绘制的图片会出现下图中文字重叠的情况：

plt.subplot(211)
plt.plot(epochs,loss,'bo',label='Training loss')
plt.plot(epochs,val_loss,'b',label='Validation loss')
plt.title('Training and Validation loss')
plt.xlabel('Epochs')
plt.ylabel('Loss')
plt.legend()

plt.subplot(212)
plt.plot(epochs,acc,'ro',label='Training acc')
plt.plot(epochs,val_acc,'r',label='Validation acc')
plt.title('Training and Validation accuracy')
plt.xlabel('Epochs')
plt.ylabel('Acc')
plt.legend()

plt.show()

可通过tight_layout()方法解决，可根据自己喜好自动移参数：

plt.subplot(211)
plt.plot(epochs,loss,'bo',label='Training loss')
plt.plot(epochs,val_loss,'b',label='Validation loss')
plt.title('Training and Validation loss')
plt.xlabel('Epochs')
plt.ylabel('Loss')
plt.tight_layout()
plt.legend()

plt.subplot(212)
plt.plot(epochs,acc,'ro',label='Training acc')
plt.plot(epochs,val_acc,'r',label='Validation acc')
plt.title('Training and Validation accuracy')
plt.xlabel('Epochs')
plt.ylabel('Acc')
plt.tight_layout()
plt.legend()

plt.show()