'''字符串的比较'''
print('apple'>'app') #True
print('apple'>'banana') #False
print(ord('a'),ord('b')) #97 98 #字符串比较的是 ordinal value
print(ord('杨')) #26472
print(chr(97),chr(98)) #a b #内置函数chr可找到ordinal value对应的字母
print(26472) #杨
'''== 和 is 的区别
== 比较的是value
is 比较的是id是否相等
'''
a=b='Python'
c='Python'
d='Py'+'thon'
print(a==b,b==c) #True True
print(a is b) #True
print(a is c) #True
print(id(a),id(b),id(c)) #因为字符串的驻留机制，id相等
E:\PycharmProjects\pythonProject\venv\Scripts\python.exe E:/PycharmProjects/pythonProject/demon1/demo20.py True False 97 98 26472 a b 26472 True True True True 2128103624432 2128103624432 2128103624432 进程已结束,退出代码0
标签：print,chr,9.8,26472,字符串,操作,True,id From： https://www.cnblogs.com/988MQ/p/16655390.html