Python 按用户对输入列表使用循环

我想让这段代码更加优雅，使用loop将用户输入获取到列表中，并使列表成为一个浮点列表，而不必在使用或打印列表时将列表上的每个参数定义为一个浮点。。。 我对Python3.x或一般的python都很陌生，这是迄今为止我编写的第一个代码“请原谅我！”

Name = "john"
Place = "Colorado"
print (("Hello %s What's up? \nare you coming to the party tonight in %s\n 
if not at least try to make simple calculator:") % (Name, Place))

print ("you will input 2 numbers now and i will devide them for you:")
calc =list(range(2))
calc[0] = (input("number 1:"))
calc[1] = (input("number 2:"))
print (float(calc[0])/float(calc[1]))

---

你在找这样的东西吗：

values=[float(i) for i in input().split()]
print(float(values[0])/float(values[1]))

输出：

1 2
0.5

---

通过使用一个函数在一个列表中为您进行输入，该列表包含两个数字：

def inputFloat(text):
    inp = input(text)   # input as text
    try:                # exception hadling for convert text to float
        f = float(inp)  # if someone inputs "Hallo" instead of a number float("Hallo") will
                        # throw an exception - this try: ... except: handles the exception
                        # by wrinting a message and calling inputFloat(text) again until a
                        # valid input was inputted which is then returned to the list comp
        return f        # we got a float, return it
    except:
        print("not a number!") # doofus maximus user ;) let him try again
        return inputFloat(text) # recurse to get it again

其余部分来自您的代码，更改的是处理消息和输入创建的列表comp：

Name = "john"
Place = "Colorado"
print (("Hello %s What's up? \nare you coming to the party tonight in %s\n"+
        " if not at least try to make simple calculator:") % (Name, Place))

print ("you will input 2 numbers now and i will devide them for you:")

# this list comprehension constructs a float list with a single message for ech input
calc = [inputFloat("number " + str(x+1)+":") for x in range(2)] 
if (calc[1]):  # 0 and empty list/sets/dicts/etc are considered False by default
    print (float(calc[0])/float(calc[1]))
else:
    print ("Unable to divide through 0")

输出：

"
Hello john What's up?
are you coming to the party tonight in Colorado
 if not at least try to make simple calculator:
you will input 2 numbers now and i will devide them for you:
number 1:23456dsfg
not a number!
number 1:hrfgb
not a number!
number 1:3245
number 2:sfdhgsrth
not a number!
number 2:dfg
not a number!
number 2:5
649.0
"

链接：

---

既然你说你是Python新手，我建议你自己尝试几种方法。这将是一次很好的学习经历。我不打算在这里直接给你答案，因为那样会破坏目的。相反，我将提供关于从何处开始的建议

旁注：使用Python3真是太好了。Python3.6支持f字符串。这意味着您可以使用

print

功能替换该行，如下所示

print(f"Hello {Name} What's up? "
"\nare you coming to the party tonight in {Place}"
"\n if not at least try to make simple calculator:")

好的，您应该按顺序查看以下内容：

• for循环
• 列表理解
• 命名元组
• 功能
• 零分误差

---

看看这里的建议：这是一个很好的调查对象列表。。行！谢谢，伙计，当然。欢迎继续在这里讨论。如果需要，我可以回答更详细的问题。欢迎来到Python！.split（）的用途是什么？