Question

It's no pleasure 后面加doing 还是to do

Answer 1

it's no pleasure (in) doing sth

类似的还有 it's no use (in) doing sth, it's no point (in) doing sth, it's no good (in) doing sth...... 做....没有意义，没有用处
可以转换成： it's useless to do sth, it's pointless in doing sth (这里的in都可以省略) （转换成形容词后，后面就+to do ）

Answer 2

答案：It's no pleasure 后面应该加doing
详细解释：
正确用法是：it's no pleasure (in) doing sth，意思是做……事情没有乐趣。
扩展用法：
类似的用法还有 it's no use (in) doing sth, it's no point (in) doing sth, it's no good (in) doing sth. 做……没有意义,没有用处