如何在更改所选文本时替换或删除？

Question

我的选择选项带有'bla'文本。选择时应删除或替换'bla'。

<select class="myclass">
    <option value="1">Item 1</option>
    <option value="2">Item 1.1</option>
    <option value="3">someitem is bla</option>
    <option value="4">Item 1.2</option>
    <option value="4">Noya prem bla</option>
 <option value="2">Item 6.1</option>
 <option value="2">Item bla yakito</option>
</select>

选择后，应该是这样。

https://i.imgur.com/cjtN0Au.png

https://i.imgur.com/p7ZLdW0.png

https://i.imgur.com/aYaGVfO.png

Answer 1

long Answer = Convert.ToInt64(Console.ReadLine());
if (Answer == (long)num01 * (long)num02)
{
    Console.WriteLine("Well done your correct!");
} 
else
{
    int responseIndex2 = numberGen.Next(1, 3);
    switch (responseIndex2) {

        case 1:
            Console.WriteLine("You noob");
            break;
        case 2:
            Console.WriteLine("Are you trying uh?!");
            break;
    }

}

替换选定的选项文本。

$( "#myselect option:selected" ).text("Your text");

删除所选文本中的所有“ bla bla”