我在代码中看到一些错误。

你可能意味着数学术语

I see some errors in your code.
Your probably meant the mathematical term

90< = angle< = 180，意味着角度在90-180范围内。

90 <= angle <= 180, meaning angle in range 90-180.

if (angle >= 90 && angle <= 180) {

// do action
}