縮進錯誤

Question

flucommands = """ 
Library: 
    CEL: 
    &replace EXPRESSIONS: 
    MassFlowRate = """ 

flucommands = flucommands + 0.43 + "[kg s^-1]" 

flucommands = flucommands + """ 
Temp = """ 

flucommands = flucommands + 843.15 + "[K]" 

counttt = 1 
while (counttt<=3): 
flucommands = flucommands + "PorositySub" + countt 
flucommands = flucommands + " = " + 0.75 + "\n" 
counttt = counttt + 1 

我得到錯誤

'flucommands = flucommands + 「PorositySub」 + countt' 錯誤是 '期望 一個縮進塊'

任何幫助理解。謝謝！！！

Answer 1

這需要縮進：

while (counttt<=3): 
    flucommands = flucommands + "PorositySub" + countt 
    flucommands = flucommands + " = " + 0.75 + "\n" 
    counttt = counttt + 1 

Python使用縮進而不是括號（在一些其他語言）的語句塊。

沒有這個你的while:循環沒有被定義，因此你收到的錯誤。

見：http://www.tutorialspoint.com/python/python_while_loop.htm和https://docs.python.org/2.3/ref/indentation.html