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foreword
The catalog of this series of tutorials can be viewed here: Rust Tutorial Catalog
The previous chapters introduced many of the basic basic data structures in Rust, and Stringthis type is often used because it is related to a core concept in Rust: ownership
Therefore, it has not been answered before, and the purpose of this article is to delve into the Stringunderlying principles of this, and use it as a medium to introduce the concept of ownership
1. String analysis
Looking at the software you often come into contact with from a more macro perspective, you can find that for console programs, you only see characters
For software with a graphical interface (GUI), in addition to patterns, there are various texts (strings)
From this you can see the importance of strings: no matter what program, the use of strings is basically inseparable
To use strings in rust, you can use the following code:
fn