编写伪代码算法，查找包含特定值的数字列表。
Algorithm SearchList (list, target_number): 

Set index = 0
Set found = False

While index < list 长度 and found = False:
    If list 在index处的值 = target_number
        Set found = True
    Else
        Increment index
    
If found = True
    Print "数字在索引" + index + "处找到"
Else
    Print "未找到数字"