Flexible Go Slice Data Structures

# Introduction

In the previous section, we discussed arrays in Go. However, arrays have limitations: once declared and initialized, their length cannot be changed. Therefore, arrays are not widely used in daily programming. In contrast, slices are more commonly used and provide a more flexible data structure.

**Knowledge Points:**

- Define a slice
- Initialize a slice
- Operations on slices, i.e., add, delete, modify, and search
- Expand a slice
- Slice truncation
- Multi-dimensional slices