重新打开了一个新的IDLE之后,运行了3遍,显示的是“not defined”,也不知道哪里出现了问题,源码也没有保存……
Python 3.7.4 (tags/v3.7.4:e09359112e, Jul 8 2019, 20:34:20) [MSC v.1916 64 bit (AMD64)] on win32
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>>> a>=b
Traceback (most recent call last):
File "<pyshell#0>", line 1, in <module>
a>=b
NameError: name 'a' is not defined
>>> a >= b
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
a >= b
NameError: name 'a' is not defined