擅长:python、mysql、java
<pre><code>import os
BASE_NAME = 'mms1_fgm_srvy_l2_20160104_v4.{}.0'
EXT = '.cdf'
attempts = int(input('Check file up to: '))
for num in range(attempts):
file_name = BASE_NAME.format(num) + EXT
if os.path.isfile(file_name):
# open file here
print("Opened File")
else:
print("File does not exist")
</code></pre>
<p>检查文件是否存在,如果存在,您可以加载它并保存它,否则它将打印文件不存在</p>