如何在函数内打印输入变量的结果

Question

这是我的代码，输入变量是 map1，用户被提升为输入文件路径，我想在用户输入位置后 print('map saved to', map1)，但出现错误 NameError: name 'map1' is not defined.当用户输入时，变量被定义并被赋予一个值。为什么不打印？

def question2(two):
     map1 = input('where do you want to save the map? please enter filepath with image type e.g C:/map.jpg: ')
     fig, ax = plt.subplots(figsize = (15,12))
     filtered_buildings.plot(ax = ax, color = 'red', edgecolor = 'black',)
     Highway.plot(ax = ax, color = 'black')
     Tunnel.plot(ax = ax, color = 'green', alpha = 0.5, edgecolor = 'black',)
     Tunnel_buffer.plot(ax = ax, facecolor='none', edgecolor = 'black',)
     ctx.add_basemap(ax, source=ctx.providers.OpenStreetMap.Mapnik)
     plt.title('Filtered Buildings') 
     plt.savefig(fname=map1, dpi=300)
if __name__ == '__main__':
    do_again = 'start_string'
    while not do_again in ['yes', 'y', 'Yes', 'No', 'n', 'no']:
        do_again = input("Would you like to save the final map? (y/n)? ").lower()
    if do_again == 'yes' or do_again == 'y' or do_again == 'Yes':
        print('Saving Map...')
        print('map saved to', map1)
        question2()

Answer 1

打印语句

print('Saving Map...')
print('map saved to', map1)

应该直接在 plt.savefig(fname=map1, dpi=300) 之后和 if __name__ == '__main__':

之前

正确的代码是：

def question2():
     map1 = input('where do you want to save the map? please enter filepath with image type e.g C:/map.jpg: ')
     fig, ax = plt.subplots(figsize = (15,12))
     filtered_buildings.plot(ax = ax, color = 'red', edgecolor = 'black',)
     Highway.plot(ax = ax, color = 'black')
     Tunnel.plot(ax = ax, color = 'green', alpha = 0.5, edgecolor = 'black',)
     Tunnel_buffer.plot(ax = ax, facecolor='none', edgecolor = 'black',)
     ctx.add_basemap(ax, source=ctx.providers.OpenStreetMap.Mapnik)
     plt.title('Filtered Buildings') 
     plt.savefig(fname=map1, dpi=300)
     print('Saving Map...')
     print('map saved to', map1)
if __name__ == '__main__':
    do_again = 'start_string'
    while not do_again in ['yes', 'y', 'Yes', 'No', 'n', 'no']:
        do_again = input("Would you like to save the final map? (y/n)? ").lower()
    if do_again == 'yes' or do_again == 'y' or do_again == 'Yes':
        question2()

如何在函数内打印输入变量的结果

How to print the results of an input variable inside a function

printing

scope

input

function