try to do sth. 与try doing sth.有什么区别

try to do sth 尽力做某事
例：
I tried to escape,but I failed.
我努力着想逃走,但是没有成功.
try doing sth 尝试做某事
例：
----"So hot here,isn't it?"
----"Yes,why not try turning on the air conditioner?"
——很热,是吧.
——恩,就是.咱们开开空调吧,看看能不能凉快点儿.