func.py

def func():
    total = []
    while True:
        unit= input("请输入：")
        if unit== 'q':
            break
        else:
            try:
                total.append(float(unit))
            except:
                pass
            
    return total
def sum(j):
    count=0
    for i in j:
        count=count+i
    return count
f=func()
l=sum(f)
print(l)