铁蟒中的缩进错误

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

我搞错了

'flucommands = flucommands + "PorositySub" + countt' error is 'expect an indented block'

感谢任何帮助。谢谢！！！在

Answer 1

这需要缩进：

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

python对语句块使用缩进而不是大括号（在其他一些语言中）。在

如果没有这个，您的while:循环就没有定义，因此会收到错误。在

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