Who knows the different between"effect" and "affect"

"To affect" 是一個動詞.

"Effect" 是個名詞.

比方說:

1) The student's skipping class everyday has "negatively affected" his grades. 這位同學天天翹課的行為"負面得影響了"他的成績.

2) The "negative effects" that skipping had on his grades are obvious. 翹課在這位同學的成績上所導致的"負面影響"是非常明顯的.

Effect is equal to result, as a positive or negative consequence, as a noun and to bring about, as a verb. 

The effect (N) of a prolonged winter was a town full of grumpy people.

The prolonged winter effected (V) a change in the atmosphere of the town.

Affect is equal to feeling or emotion, as a noun and to influence, have an impact upon, as a verb.

The affect of the townspeople was visible on their faces.

The prolonged winter affected the townspeople quite negatively.

Learn a lot,you are so kind!