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baiyunjn 发表于 2018-8-4 07:29:14

Python 的运算符

#!/usr/bin/python　　

　　
a = 21
　　
b = 10
　　
c = 0
　　

　　
if ( a == b ):
　　
   print "Line 1 - a is equal to b"
　　
else:
　　
   print "Line 1 - a is not equal to b"
　　

　　
if ( a != b ):
　　
   print "Line 2 - a is not equal to b"
　　
else:
　　
   print "Line 2 - a is equal to b"
　　

　　
if ( a <> b ):
　　
   print "Line 3 - a is not equal to b"
　　
else:
　　
   print "Line 3 - a is equal to b"
　　

　　
if ( a < b ):
　　
   print "Line 4 - a is less than b"
　　
else:
　　
   print "Line 4 - a is not less than b"
　　

　　
if ( a > b ):
　　
   print "Line 5 - a is greater than b"
　　
else:
　　
   print "Line 5 - a is not greater than b"
　　

　　
a = 5;
　　
b = 20;
　　
if ( a <= b ):
　　
   print "Line 6 - a is either less than or equal tob"
　　
else:
　　
   print "Line 6 - a is neither less than nor equal tob"
　　

　　
if ( b >= a ):
　　
   print "Line 7 - b is either greater thanor equal to b"
　　
else:
　　
   print "Line 7 - b is neither greater thannor equal to b"

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