综上所述,答案为A.True 。这道题考察了对 Python 字符串操作符 in 的理解。in 操作符用于检查一个字符串是否包含另一个字符串,它的语法如下:substring in string其中,substring 是待检查的子字符串,string 是要检查的字符串。如果 string 包含了 substring,那么表达式的结果为 True;否则结果为 False。在这道题...
Python program to print words with their length of a string # Function to split into words# and print words with its lengthdefsplitString(str):# split the string by spacesstr=str.split(" ")# iterate words in stringforwordsinstr:print(words," (",len(words),")")# Main code# declare ...
print(substring) # 输出:Python! # 获取前5个字符 substring = text[:5] print(substring) # 输出:Hello # 获取从第7到第12个字符 substring = text[7:13] print(substring) # 输出:Python 字符串拼接 字符串拼接是指将多个字符串合并成一个字符串。Python中可以使用+操作符或join()方法进行拼接。 pytho...
Python program to print the reverse of a string that contains digits # function definition that will return# reverse string/digitsdefreverse(n):# to convert the integer value into strings=str(n)p=s[::-1]returnp# now, input an integer numbernum=int(input('Enter a positive value: '))# ...
Return the number of non-overlapping occurrences of substring sub in string S[start:end]. Optional arguments start and end are interpreted as in slice notation. 查找子字符串 sub 在字符串中出现的次数,可选参数,开始 和 结束 可理解为切片
How do I get a substring of a string in Python? Questions How do I uppercase or lowercase a string in Python? Questions How to convert string into datetime in Python? Questions This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. ...
Print a Character n Times in Python Read more → Add character to String in Python Read more → Using the partition() function The partition() function works similarly to the previous method. We are able to create partitions of a string based on a substring. This function returns a tupl...
print(substring) # 输出: World 字符串的方法 python # 使用字符串的 upper 方法将字符串转换为大写 upper_string = my_string.upper() print(upper_string) # 输出: HELLO, WORLD! # 使用字符串的 replace 方法替换字符串中的字符或子串 replaced_string = my_string.replace("World", "Python") ...
利用Python中的 split() 方法可以轻易将字符串拆分成较小的子字符串列表。 split() 方法:https://docs.python.org/3/library/stdtypes.html#str.split s = 'KDnuggets is a fantastic resource' print(s.split()) ['KDnuggets', 'is', 'a', 'fantastic', 'resource'] ...
如你所见,切片适用于提取序列的一部分,其中编号非常重要:第一个索引是包含的第一个元素的编号,但第二个索引是切片后余下的第一个元素的编号(这跟java的substring有点儿相似)。 1.2.1 绝妙的简写 str1 = ['java','c++','C','C#','python']