String.IndexOf
Returns the index where the string was first found.

Properties
| Property Name | Description |
|---|---|
| String | String |
| Value | String to judge whether it is rare |
| Start Index | Start index to judge |
| Count | The number of characters in the string to be judged. If a negative value is specified, the end of the character string is judged. |
| String Comparison | Specify the rules for judgment. |
| Result | Result output |