7.4. String pool Strs

2. The string pool provides dynamic memory space for strings, supports any length strings, and a string pool can store any number of strings.

3. Provide a safe operation method, when using the strs API, the quoted string will not be modified. All modifications are made in the newly allocated memory area. Therefore, there will be no serious security problems such as dangling pointers and tampered strings.

The data type of Strs is Args, and a parameter table is maintained internally.