个人接做网站多少钱/搜索引擎优化涉及的内容

1、问题描述：从给定的字符串中删除指定的子字符串，例如将字符串“abcdefgh”中子串“cd”删除，并显示结果。

我的python实现：

#!-*-coding:utf-8-*-import sys,osdef delete_substr_method1(in_str, in_substr):start_loc = in_str.find(in_substr)in_str, in_substr = list(in_str), list(in_substr)[len_str, len_substr] = len(in_str), len(in_substr)res_str = in_str[:start_loc]for i in range(start_loc + len_substr, len_str):res_str.append(in_str[i])res = ''.join(res_str)return resdef delete_substr_method2(in_str, in_substr):start_loc = in_str.find(in_substr)len_substr = len(in_substr)res_str = in_str[:start_loc] + in_str[start_loc + len_substr:]return res_strif __name__ == "__main__":in_str = input("please input string:")in_substr = input("please input substring:")result = delete_substr_method2(in_str, in_substr)print(result)print("ok")

2、字符串循环右移n位。如abcdefg右移2位后为fgabcde.

#!-*-coding:utf-8-*-#pythonic method
def circle_move_method1(input_str, k):l = len(input_str)return input_str[l - k:] + input_str[:l - k]#traditional method, space complexity O(1),time complexity O(n)
def circle_move_method2(input_str, k):input_str = list(input_str)#l = len(input_str)#for i in range(k):#  ch = input_str[l - 1]#  for j in range(l-1,0,-1):#    input_str[j] = input_str[j - 1]#  input_str[0] = ch#return "".join(input_str)#another imply style about comment blockfor i in range(k):input_str.insert(0, input_str.pop())return "".join(input_str)if __name__ == "__main__":input_str = input("please input:")n = int(input("input the move value:"))print(circle_move_method2(input_str, n))