1# URL String Parsing 2 3### Introduction 4 5This sample shows how to add, delete, modify, and query URL string search parameters to help you understand the URL structure and usage. 6 7### Usage 8 91. Touch **Insert key-value pair**. The parameter in the text box on the left is inserted behind the search parameter. 10 112. Touch **Delete key-value pair** to delete the specified key-value pair. 12 133. Touch **Get first value** to search for and display the value of the first occurrence of the specified key. 14 154. Touch **Set new value** to delete all key-value pairs associated with the key and assign a new value to the key. 16 17### Constraints 18 19This sample can only be run on standard-system devices. 20