string="Hello, World!"print(string[0])# 输出'H'print(string[4])# 输出'o'print(string[-1])# 输出'!'defget_nth_character(string,n):index=n-1ifindex<0orindex>=len(string):return"Index out of range!"returnstring[index]string="Hello, World!"print(get_nth_character(string,1))# 输出...
#!/usr/bin/env python # user_defined.py class BFoundEx(Exception): def __init__(self, value): self.par = value def __str__(self): return f"BFoundEx: b character found at position {self.par}" string = "There are beautiful trees in the forest." pos = 0 for i in string: t...
test = "Python Programming"print("String: ", test)# First one characterfirst_character = test[:1]print("First Character: ", first_character)# Last one characterlast_character = test[-1:]print("Last Character: ", last_character)# Everything except the first one characterexcept_first = tes...
test="Python Programming"print("String: ",test)# First one character first_character=test[:1]print("First Character: ",first_character)# Last one character last_character=test[-1:]print("Last Character: ",last_character)# Everything except the first one character except_first=test[1:]print...
ASCII value of the character b is 98. ASCII value of the character c is 99. ASCII value of the character z is 122. 如果我们向ord()函数传递一个字符以外的值,它将引发一个 TypeError 异常。例如,如果我们传递一个包含多个字符而不是单个字符的字符串,ord()函数将引发如下的 TypeError。 char1 =...
Write a Python program to remove the nthindex character from a nonempty string. Sample Solution: Python Code: # Define a function named remove_char that takes two arguments, 'str' and 'n'.defremove_char(str,n):# Create a new string 'first_part' that includes all characters from the beg...
d = {'name': 'jason', 'age': 20} d.get('name') 'jason' d.get('location', 'null') 'null' 说完了字典的访问,我们再来看集合。 首先我要强调的是, 集合并不支持索引操作,因为集合本质上是一个哈希表,和列表不一样。所以,下面这样的操作是错误的,Python会抛出异常: 代码语言:javascript 代码...
String: Python Programming First Character: PLast Character: gExcept First Char.: ython ProgrammingExcept First Char.: Python ProgramminBetween two character: thon ProgrammiSkip one character: Pto rgamnReverse String: gnimmargorP nohtyP 检查字符串是否为空 ...
9. Remove nth character from a string. Write a Python program to remove the nthindex character from a nonempty string. Click me to see the sample solution 10. Swap first and last chars of a string. Write a Python program to change a given string to a newly string where the first and...
# Python Program to Update /delete # character of a String String1 = "Hello, I'm a Geek" # Updating a character String1[2] = 'p' # Deleting a character del String1[2] 输出如下: Traceback (most recent call last): File "/home/360bb1830c83a918fc78aa8979195653.py", line 6, in...