Question

我有以下代码：

cust_numb = int(input("Enter number of unique customers then press enter: "))
list_customer = []
for y in range(0,cust_numb):
    s = (range(1,cust_numb))
    purch_numb = input("How many purchases did customer %s have? " % (s))
    list_customer.append(purch_numb)
for z in range(0,cust_numb):
  print("Customer %s" % (in range(1,cust_numb)) + "had %s" % (purch_numb) + "purchases.")

当我运行它时，终端会说：

File "main.py", line 8
    print("Customer %s" % (in range(1,cust_numb)) + "had %s" %(purch_numb) + 
"purchases.")
              ^
SyntaxError: invalid syntax

我不知道我做错了什么。有帮助吗？

是的，我知道我的某些％s字符串也是错误的。

Answer 1

代替执行另一个for循环，只需从前一个for循环中获取数字并将其添加一个即可，因此如果您愿意，它从1开始计数。

经测试可正常工作

cust_numb = int(input("Enter number of unique customers then press enter: "))
list_customer = {}
customers = 1
for y in range(0,cust_numb):
    purch_numb = int(input("How many purchases did customer %s have? " % (customers)))
    list_customer.update({"customer{}".format(customers) : purch_numb})
    customers = customers + 1

info = ""
for customer in range(0,cust_numb):
    info += "%s " % ("customer{}".format(customer+1)) + "had %s " % (list_customer["customer{}".format(customer+1)]) + "purchases. "

print(info)

for循环中的“无效语法”，如何使用for循环获取客户编号？

1 个答案: