我想要一个小程序来计算用户输入的每个零件号。 到目前为止,我能做得到。
是否可以将零件编号及其频率导出到.csv文件?
from collections import Counter
thislist = []
frequency = []
partnumber = ""
def mainmanu():
print ("1. Create List")
print ("2. Print list")
print ("3. Exit")
while True:
try:
selection = int (input("Enter Choice: ")
if selection ==1:
creatlist(thislist)
elif selection ==2:
counteach(thislist)
elif selection ==3:
break
except ValueError:
print ("invalid Choice. Enter 1-3")
def creatlist(thislist)
# while True:
partnumber = input ("Enter Part number: ")
if partnumber =="end":
print(thislist)
mainmanu()
break
thislist.append(partnumber)
def counteach(thislist)
Counter(thislist)
mainmanu()
mainmanu()
答案 0 :(得分:0)
欢迎来到StackOverflow。
您要在另一个由mainmanu函数调用的函数内部调用mainmanu函数。相反,您应该做的是让mainmanu调用所有其他辅助函数。另外,您不能在另一个函数中调用break并期望它在哪里中断。
执行过程如下:
mainmanu被调用,它调用creatlist,完成执行后将继续执行从其离开的指令。
from collections import Counter
thislist = []
frequency = []
partnumber = ""
def mainmanu():
print ("1. Create List")
print ("2. Print list")
print ("3. Exit")
while True:
try:
selection = int (input("Enter Choice: ")
if selection ==1:
if creatlist(thislist): # line x
break
elif selection ==2:
counteach(thislist)
elif selection ==3:
break
except ValueError:
print ("invalid Choice. Enter 1-3")
def creatlist(thislist)
# while True:
partnumber = input ("Enter Part number: ")
if partnumber =="end":
print(thislist)
return True #this value will make the the condition to be true see line x
thislist.append(partnumber)
return false
def counteach(thislist)
Counter(thislist)
mainmanu()