What is the method for splitting strings in Python?

In Python, the split() method can be used to divide a string. This method splits the string based on a specified delimiter, and returns a list of the divided strings.

Example of usage:

string = "Hello, World!"
result = string.split(",")  # 使用逗号作为分隔符进行切割
print(result)  # 输出：['Hello', ' World!']

The split() method can also specify the number of splits by passing an optional maxsplit parameter. If the maxsplit parameter is not specified, it will default to splitting all matching items.

Usage example:

string = "apple,banana,grape,orange"
result = string.split(",", 2)  # 使用逗号作为分隔符进行切割，最多切割2次
print(result)  # 输出：['apple', 'banana', 'grape,orange']

In addition to using the split() method, you can also use slice operations to cut a string. Slicing allows you to extract a portion of a string by specifying a start index and end index.

Example of usage:

string = "Hello, World!"
result = string[7:]  # 从索引7开始截取到最后
print(result)  # 输出：'World!'

result = string[:5]  # 从开头截取到索引5（不包含5）
print(result)  # 输出：'Hello'

result = string[7:12]  # 从索引7开始截取到索引12（不包含12）
print(result)  # 输出：'World'

It is worth noting that the index of a string starts from 0, and when slicing, the ending index is not included in the result.