first_10_chars=my_string[:10] 1. 这行代码的意思是:从字符串my_string的开头(即索引0)开始,取到第10个字符(索引9)。 步骤3:打印结果 最后,我们可以使用print()函数来打印我们获取的前10个字符。 print("The first 10 characters are:",first_10_chars) 1. 饼状图 为了更直观地展示字符串切片的过程,...
Python stRING >>> print str.ljust(20) #生成20个字符长度,str左对齐 Python stRING >>> print str.rjust(20) #生成20个字符长度,str右对齐 Python stRING 2.>大小写转换 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 >>> str = "Python stRING" >>> str.upper() #转大写 'PYTHON ...
a nice string representation of the object. | If the argument is a string, the return value is the same object. | | Method resolution order: | str | basestring | object | | Methods defined here: | | __add__(...) | x.__add__(y) <==> x+y | | __contains__(...) | x...
Return True if the string is a title-cased string, False otherwise. In a title-cased string, upper- and title-case characters may only follow uncased characters and lowercase characters only cased ones. """ pass def isupper(self, *args, **kwargs): # real signature unknown """ Return Tr...
Write a Python program to lowercase the first n characters in a string. Sample Solution: Python Code: # Define a string 'str1'.str1='W3RESOURCE.COM'# Convert the first four characters of the string to lowercase and concatenate them with the remaining characters.# Print the modified string....
print (var1) print (type(var1))注:标准的序列操作(索引,分片,乘法,判断成员资格,求长度,取最大值和最小值)对字符串也是适用的.但字符串是不可变的,分片赋值不合法.1.字符串格式化注:如果需要转换的元组作为转换表达式的一部分存在,必须将它用圆括号括起来格式化...
make the first character have upper case and the rest lower case. """ pass def casefold(self, *args, **kwargs): # real signature unknown """ Return a version of the string suitable for caseless comparisons. """ pass def center(self, *args, **kwargs): # real signature unknown ""...
# access characters in string # declare, assign string str = "Hello world" # print complete string print "str:", str # print first character print "str[0]:", str[0] # print second character print "str[1]:", str[1] # print last character print "str[-1]:", str[-1] # print...
import string # Convert uppercase characters to their ASCII decimal numbers ascii_upper_case = string.ascii_uppercase # Output: ABCDEFGHIJKLMNOPQRSTUVWXYZ for one_letter in ascii_upper_case[:5]: # Loop through ABCDE print(ord(one_letter)) Output: 代码语言:javascript 代码运行次数:0 运行 AI...
S.capitalize() -> string|| Return a copy of the string S with only its first character| ...