Python 具有多种功能的销售税程序

我的代码有问题。每次我编译程序时，都会出现一个错误，告诉我语法不正确。这是函数的正确语法吗

sale=float(input("Enter the total sales price:"))
print("Cost of item: ", format(sale, '.2f'))
def main():
    c_tax()
    s_tax()
    TotalT()
    TotalC()
def c_tax():
    county_tax = sale * 0.02
    print("County tax: ", format(county_tax, '.2f'))
def s_tax():
    state_tax = sale * 0.04
    print("State tax: ", format(state_tax, '.2f'))
def TotalT():
    s = sale * 0.04
    c = sale * 0.02
    print("Total tax: ", format(s + c, '.2f')
def TotalC():
    state = sale * 0.04
    county = sale * 0.02
    TotalCost = sale + county + state
    print("Total cost of item: ", format(TotalCost, '.2f'))

main()

以下是错误消息：

File "<ipython-input-17-176f54874857>", line 19
    def TotalC():
      ^
SyntaxError: invalid syntax

文件“”，第19行
def TotalC（）：
^
SyntaxError:无效语法

在代码中，函数应该有一个发送“sale”值的参数

请尝试以下方法：

def TotalC(sale):

---

根据您的函数，必须预先设置变量“sale”

sale = 12
def TotalC():
    state = sale * 0.04
    county = sale * 0.02
    TotalCost = sale + county + state
    print("Total cost of item: ", format(TotalCost, '.2f'))

TotalC()
# 12.72

否则，您需要将其作为参数传递

def TotalC(sale):
    state = sale * 0.04
    county = sale * 0.02
    TotalCost = sale + county + state
    print("Total cost of item: ", format(TotalCost, '.2f'))

TotalC(12)
# 12.72