Xiao Ming arrives at school at 8:00 in the morning, leaves school at 4:00 in the afternoon, and takes a 1-hour break at noon. How many hours does Xiao Ming study at school?
小明早上8：00到校，下午4：00放学，中午休息1小时，小明在校学习的时间是多少小时
<result>7</result>