Python比較演算子

これらの演算子は、それらの両側の値を比較し、それらの間の関係を決定します。関係演算子とも呼ばれます。

変数aが10を保持し、変数bが20を保持すると仮定すると、-

例

変数aが10を保持し、変数bが20を保持すると仮定すると、-

#!/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 to b"
else:
print "Line 6 - a is neither less than nor equal to b"
if ( b >= a ):
print "Line 7 - b is either greater than or equal to b"
else:
print "Line 7 - b is neither greater than nor equal to b"

出力

上記のプログラムを実行すると、次の結果が生成されます-

Line 1 - a is not equal to b
Line 2 - a is not equal to b
Line 3 - a is not equal to b
Line 4 - a is not less than b
Line 5 - a is greater than b
Line 6 - a is either less than or equal to b
Line 7 - b is either greater than or equal to b