... 指示字变量限制 pointer-variable qualification; 指示字表达式 pointer expression; 指示字地址 pointer address; ...
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And now, if I'm touching mouse pointer, we saw that Boolean expression before, play sound meow, wait a couple of seconds, and then just keep checking.
现在,如果我们碰下鼠标指针,起初我们看到一个布尔表达式,播放猫叫的声音,等几秒钟,然后如刚才那样做检测。
We have already seen that when we use an array name in an expression, we are actually using a pointer to the first element in the array.
我们已经看到,在表达式中使用数组名时,实际上使用的是指向数组第一个元素的指针。
Scratch This Boolean expression allows you to say to scratch if you are touching the mouse pointer, the little arrow, do something. How do we do something?
布尔表达式允许你告诉,当你触碰到鼠标指针,也就是小箭头,程序就相应地做一些事情?
And now, if I'm touching mouse pointer, we saw that Boolean expression before, play sound meow, wait a couple of seconds, and then just keep checking.
现在,如果我们碰下鼠标指针,起初我们看到一个布尔表达式,播放猫叫的声音,等几秒钟,然后如刚才那样做检测。
Scratch This Boolean expression allows you to say to scratch if you are touching the mouse pointer, the little arrow, do something. How do we do something?
布尔表达式允许你告诉,当你触碰到鼠标指针,也就是小箭头,程序就相应地做一些事情?
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