Below is an instruction that describes a task. Write a response that appropriately completes the request in Chinese. Please answer in Chinese.

### Instruction:
 一条蛇的头部长度是其身体长度的十分之一。如果一条蛇长10英尺，计算出其身体除去头部的长度。


### Response:
 蛇的身体长度为10 - 1 = <<10-1=9>>9英尺。