Question

我正在处理我正在处理的程序问题。它是GTIN-8代码生成器。当我尝试启动程序时，我收到错误：

Type Error: Can't convert 'int' to str implicitly.

我的代码如下：

sevenNum = ""
gtinNum = ""
checkDigit = ""
total = ""

a = ""
b = ""
c = ""
d = ""
e = ""
f = ""
g = ""

def GTINCalc():
    a = int(sevenNum[0])*3
    b = int(sevenNum[1])*1
    c = int(sevenNum[0])*3
    d = int(sevenNum[1])*1
    e = int(sevenNum[0])*3
    f = int(sevenNum[1])*1
    g = int(sevenNum[0])*3

    total = (a+b+c+d+e+f+g)

    checkDigit = (total + 9) // 10 * 10 - total

    print("GTIN-8 Code:" + a+b+c+d+e+f+g+checkDigit)


def sevenNumAsk():
    sevenNum = input("Enter a 7 digit number to be converted into a GTIN-8 Number")
if sevenNum.isdigit() == True and len(sevenNum) == 7:
    print("Valid Number - Calculating GTIN-8...")
    GTINCalc()
else:
    print("The number is not valid - please re-enter ")
    sevenNumAsk()

sevenNumAsk()

我遇到这个部分的问题：

total = (a+b+c+d+e+f+g)

checkDigit = (total + 9) // 10 * 10 - total

非常感谢。

Answer 1

您无法将string和int连接在一起：

print("GTIN-8 Code:" + a+b+c+d+e+f+g+checkDigit)

无论如何使用字符串格式更为正确，例如：

print("GTIN-8 Code: {0}{1}{2}{3}{4}{5}{6}{7}".format(a, b, c, d, e, f, g, checkDigit))

Answer 2

a，b .... g定义为字符串：

a = ""
b = ""
c = ""
d = ""
e = ""
f = ""
g = ""

并且，当你总结total = (a+b+c+d+e+f+g)时，total也是一个字符串。

我认为你的缩进在代码中没有了。如果仅在发布问题时只是复制/粘贴错误，那么您可以参考@Selcuk的答案。

我的程序中的Integer to String错误

2 个答案: