python开发_count()

 1 #python open
 2 import os
 3 
 4 number = 0
 5 
 6 def get_number_of_char(filePath, c):
 7     '''
 8     from path, the system will get the file
 9     finally return the number char: c
10     '''
11     if os.path.exists(filePath):
12         global number
13         with open(filePath, 'r') as fp:
14             for line in fp:
15                 a = line.count(c)
16                 number = number + a
17     else:
18         print('the path:[{}] is not exist!'.format(filePath))
19 
20 def main():
21     file_path = 'c:\\test.txt'
22     get_number_of_char(file_path, 'a')
23     print(number)
24     
25 if __name__ == '__main__':
26     main()