Shulou(Shulou.com)06/01 Report--

This article will explain in detail how python uses the find () function. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Declare variable

Str= "Hello World"

Find () detects whether the string contains, returns the position of the string, and returns-1 if not

Str.find ("Hello") # return value: 0str.find ("W") # return value: 6, note here: the space is also a character. W is preceded by a space, so the W position is 6str.find ("R") # return value:-1, which is not included in Hello World. What are the data types that return-1python if not included? data type of python: 1. Numeric types, including int (integer), long (long integer), and float (floating point). two。 String, which is of type str and type unicode, respectively. 3. Boolean, Python Boolean is also used for logical operations and has two values: True (true) and False (false). 4. List, the list is the most frequently used data type in Python, and any data type can be placed in the collection. 5. Tuples are identified by "()", and internal elements are separated by commas. 6. A dictionary is a collection of key-value pairs. 7. A collection is an unordered, non-repeating combination of data.

This is the end of the article on "how python uses the find () function". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it out for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.