向下取整2113 例如 floor(3.8) ans=3 help floor floor round towards minus infinity. floor(x)rounds the elements of x to the nearest integers towards minus infinity. see also round,ceil,fix. overloaded methods...
in the sky是空中的意思 给你几个例句 there are countless stars in the sky. 天上有无数的星星. there are many swallows flying in the sky. 天空中有许多燕子. he stared up at the stars twinkling in the sky above him. 他抬眼凝视着头顶上方星光闪烁的天空...