定义一个函数 实现区间求和

def intervalSum(start,stop):
    sum=0
    for i in range(start,stop+1):
        sum+=i
    print(f"Sum from {start} to {stop} is {sum}")
    return sum

intervalSum(1,10)
intervalSum(20,37)
intervalSum(35,49)

望采纳~

def intervalSum(start , stop):
    sum = 0
    while start <= stop:
        sum += start
        start += 1
    return sum