解释下++和=++

Question

score++;

能写成score=score++;吗？为什么

Answer 1

++是有两种情况的，如：a++；++a；这两个语句在不赋值时，两个语句执行完后，都是自加  1。但是：a = 1;b=a++;和a = 1;b=++a；是不同的，前者b = 1,a = 2;后者b = 2, a = 2;两者最大区别就是先运算再赋值，还是先赋值再运算！所以：score++;可以写成score = ++score；不能写成score = score++;

Answer 2

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