Python “不支持的操作数类型 -：'int' 和 'tuple'”是什么意思？
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What does "unsupported operand type(s) for -: 'int' and 'tuple'" means?
提问by hetapuru
I got a error saying:
我收到一条错误消息：
unsupported operand type(s) for -: 'int' and 'tuple'
How do I correct it?
我该如何纠正？
from scipy import integrate
cpbar = lambda T: (3.826 - (3.979e-3)*T + 24.558e-6*T**2 - 22.733e-9*T**3 + 6.963e-12*T**4)*8.314
deltahbarCH4 = integrate.quad(cpbar,298,1000)
var = deltahbarCH4
hRPbar = hRPbar + (deltahbarCO2 + 2*deltahbarH2O - var -2*deltahbarO2)
采纳答案by Martijn Pieters
integrate.quad()returns a tuple; deltahbarCO2 + 2*deltahbarH2Ois an integer, you are trying to subtract the vartuple.
integrate.quad()返回一个元组；deltahbarCO2 + 2*deltahbarH2O是一个整数，您正在尝试减去var元组。
If you wanted justthe integral yof the integrate.quad()result, use the first element of that tuple:
如果你想只是整体y中的integrate.quad()结果，使用元组的第一个元素：
var = deltahbarCH4[0]
or use tuple assignment:
或使用元组分配：
var, err = deltabarCH4
回答by merlin2011
That error means that you are trying to use the subtraction operator -between a number and a tuple.
该错误意味着您正在尝试-在数字和元组之间使用减法运算符。
Based on the documentation, you probably want: var = deltahbarCH4[0], since that will give you the actual value of the integral, which you are computing with on a later line.
根据文档，您可能需要：var = deltahbarCH4[0]，因为这将为您提供积分的实际值，您将在稍后的行中使用该值进行计算。
