Jquery：使用公共类和change（）获取输入复选框的值

I have a table of values and need to get the value of a row's checkbox. What is happening is: If I have a table with 4 rows of data and select the top row, the binding event is being fired for each corresponding row in the table with the same class name. I only want it to fire once and return the value of the row's checkbox that was changed (need both checked and unchecked trigger). Any help is appreciated.I have a table of values and need to get the va