使用JQuery迭代HTML表（工作时间）的问题

I have a table in HTML where the user puts in their start time and their end time which calculates the hours in total. If the hours in total ranges between 0-4, the "standby hours" text field will display the value of 0.5, if the "hours in total" ranges between 4-8, the "standby hours" will display 1 and finally, if the "hours in total" ranges between 8-12, the "standby hours" will display 1.5.I have a table in HTML where the user puts in t