如何在整数列表中搜索满足多个循环条件的整数？

Question

我需要创建一个循环，可以在整数列表中搜索可被 5 和 7 整除的整数，同时允许 reader 确定列表的开始和结束数字。下面是我的代码，但出于某种原因，它只打印满足条件的列表的最后一个数字，而不是所有内容？我的代码有什么问题？我只允许使用循环函数执行此操作。

startRange =int(input("Enter the starting number:"))
endRange = int(input("Enter the end number:"))
a=range(startRange,endRange)
b=list(a)
c=b.append(int(endRange))
#find numbers
def findNumbers(startRange,endRange):
for i in b:
    if i%5==0 and i%7==0:
        Numbers=[]
        z=i
        y=Numbers.append(i)
        continue
print(favNumbers)

return favNumbers

Answer 1

startRange =int(input("Enter the starting number:"))
endRange = int(input("Enter the end number:"))
a= range(startRange,endRange)
b= list(a)
c= b.append(int(endRange))

#find numbers
favNumbers = []

def findNumbers(startRange, endRange):
    for i in b:
        if i%5==0 and i%7==0:
            favNumbers.append(i)

print(favNumbers)

Answer 2

你的代码有一些问题，所以我试着在这里解决它们：

def findNumbers(list): #findNumbers is now passed a list
    favNumbers=[] #This needs to be initialized before the for loop, or it will be reset on every iteration
    for i in list:
        if i%5==0 and i%7==0:   
            favNumbers.append(i) #The number is appended to favNumbers, and you do not set this equal to a variable.
    return favNumbers


def main(): #I don't know about you, but my CS prof would kill me if I didn't have a main()...
    startRange = int(input("Enter the starting number:"))
    endRange = int(input("Enter the end number:"))
    mylist = list(range(startRange,endRange+1)) #This allows you to include endRange in the list without appending it yourself
    print(findNumbers(mylist))

main()

我尝试对我做出重大更改的区域进行评论，但如果您有任何问题，请在下方评论！

希望对您有所帮助！

编辑

或者，这里的代码没有 main() ~~shudder~~ 更接近你原来的代码，有一个 findNumbers 函数接受两个整数而不是一个列表！

startRange = int(input("Enter the starting number:"))
endRange = int(input("Enter the end number:"))

#find numbers
def findNumbers(startRange, endRange):
    a = range(startRange,endRange+1) #Again, this way you don't have to say c = b.append(int(endRange))
    b = list(a)
    favNumbers = [] #This needs to be initialized here, or else it won't return the list you want.
    for i in b:
        if i%5==0 and i%7==0:
            favNumbers.append(i)
    print(favNumbers)
    return favNumbers

findNumbers(startRange, endRange)

如何在整数列表中搜索满足多个循环条件的整数？

How to search a list of integers for the integers that satisfy more than one criteria with loops?

python-3.6