Default values of several common arrays:
Integer: 0
Floating point type: 0.0
Character type: 0 or "\u0000" (instead of "0")
Boolean value: false
Application data type: empty
Extended data:
Declare a fixed-size array
There are three ways to declare a fixed-size array, which method depends on the valid range of the array:
1, set a public array, and declare the array with public statements in the declaration part of the module.
2. Establish a module-level array, and declare the array with a Private statement in the declaration part of the module.
3. Create a local array, and declare the array with private statements in the process.
Baidu Encyclopedia-Array