Detailed explanation of usage of python count function

In python, you can use the "count()" function to count the number of times a certain character appears in a string. This function is used to count the number of times. Its syntax is "count(sub, start= 0,end=len (string))", its parameter sub represents the searched substring.

#The Python count() method is used to count the number of times a certain character appears in a string. Optional parameters are the start and end positions of the string search.

Syntax

count() method syntax:

str.count(sub, start= 0,end=len(string))

• sub -- Search substring

• start -- The position where the string search starts. The default is the first character, and the index value of the first character is 0.

• end -- The position in the string where the search ends. The first character in the string has index 0. Defaults to the last position of the string.

#!/usr/bin/python
 
str = "this is string example....wow!!!";
 
sub = "i";
print "str.count(sub, 4, 40) : ", str.count(sub, 4, 40)
sub = "wow";
print "str.count(sub) : ", str.count(sub)

str.count(sub, 4, 40) :  2
str.count(sub) :  1

Recommended tutorial: "Python Tutorial"

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