Python implements a method of finding the position and number of characters 1 from a string _python

The main implementation of this article is to give an arbitrary string, get the position of a character in the string, and the total number of occurrences.

When implementing this feature code, you can use function enumerate to separate strings into positions and characters, and then compare them.

The specific implementation code is as follows:

#!/bin/env python
#-*-coding:utf-8-*-# "" "
  with enumerate to find out 1 of the string,
  with the enumerate implementation:
" "
def get_1_pos (string):
  onepos=[]
  try:
    onepos=list (((Pos,int (Val)) for Pos,val in enumerate (string If val = = ' 1 '))
  except: Pass return
  onepos

def get_1_num (string): Return
  len (get_1_ POS (String))

def get_char_pos (String,char):
  chpos=[]
  try:
    chpos=list ((Pos,char) for Pos,val In enumerate (string) if (val = = char))
  except: Pass return
  chpos
def get_char_num (String,char): return
  Len (Get_char_pos (String,char))

if (__name__ = = "__main__"):
  str0= "10101010101010101"
  str1= "123abc123abc123abc"
  lt=get_1_pos (STR0)
  print (LT)
  Lt=get_1_pos (str1)
  print (LT)
  num=get_1_num (STR0)
  print (num)
  lt=get_char_pos (str1, ' 1 ')
  print (LT)
  Num=get_char_num ( STR1, ' 1 ')
  print (num)  

I hope this example will help you learn about string manipulation in Python programming.