String Operation
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String Operation
String Operation:
Python provides many built-in string operations that you can use to manipulate strings. Here are some common string operations in Python:
- Concatenation: You can concatenate two or more strings using the “+” operator.
Example:
str1 = "Hello"
str2 = "world"
result = str1 + " " + str2
print(result)
Output:
Hello world
- Substring: You can extract a substring from a string using slicing. Slicing uses the colon (:) operator to specify a range of characters to extract.
Example:
str1 = "Hello world"
substring = str1[6:11]
print(substring)
Output:
world
- Replacement: You can replace a portion of a string with another string using the replace() method.
Example:
str1 = "Hello world"
new_str = str1.replace("world", "Python")
print(new_str)
Output:
Hello Python
- Splitting: You can split a string into a list of substrings using the split() method. You can specify a delimiter character to split the string.
Example:
str1 = "Hello,world"
split_str = str1.split(",")
print(split_str)
Output:
['Hello', 'world']
- Formatting: You can format a string using the format() method. You can specify placeholders in the string that will be replaced with values.
Example:
name = "John"
age = 25
formatted_str = "My name is {} and I am {} years old".format(name, age)
print(formatted_str)
Output:
My name is John and I am 25 years old
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