python教程分享python运算符号详细介绍

目录

• 比较运算符
• 布尔运算符
• python中的位运算符
• 运算符的优先级

  a,b=10,30  print('a>b吗？',a>b)  print('a=b)  print(a is b)#这个比较的是id标识  

  a>b吗？ false  a

  print(a==1 and b==2)#ture and true-->ture  print(a==1 and b<2)#ture and false-->false  print(a!=1 and b==2)#false and ture-->false  print(a!=1 and b!=2)#false and false -->false  print('---------------or 或者-----------------------------------------')  print(a==1 or b==2)#ture or true-->ture  print(a==1 or b<2)#ture or false-->ture  print(a!=1 or b==2)#false or ture-->ture  print(a!=1 or b!=2)#false and false -->false  print('---------------not 对运算数取反-----------------------------------------')  f=true  f2=false  print(not f)  print(not f2)  print('---------------in 与not in-----------------------------------------')  s='helloworld'  print('w'in s)  print('k'in s)  print('w'not in s)  print('k'not in s)  

  true  true  false  false  false  ---------------or 或者-----------------------------------------  true  true  true  false  ---------------not 对运算数取反-----------------------------------------  false  true  ---------------in 与not in-----------------------------------------  true  false  false  true