python--formatted output, operator

#例题
a=1
b=2
c=3
print (a,b,c)
Print (111)
if 3>2:
Print (333)
if True:
print (555)
Else:
print (444)
Print (888)

#字符串的拼接:
#打印我叫大哥, 26 years old this year, my sex is male
# name=input (' Please enter your name: ')
# age=input (' Please enter your Age: ')
# sex=input (' Please enter your gender: ')
# msg= ' I call ' +name+ ' this year ' +age+ ' years ' + ' my sex is ' +sex
# Print (msg)

#格式化输出% placeholder S d
#例打印名片
#第一种:
# name=input (' Please enter your name: ')
# Age=int (Input (' Please enter your Age: '))
# job=input (' Please enter your Occupation: ')
# hobby=input (' Please enter your hobby: ')
# msg = " "
#------------Info of%s-----------
# Name:%s
# Age:%d
# Job:%s
# Hobby:%s
#-------------End-----------------
# '% (name, name, age, job, hobby)
# Print (msg)
# #第二种:
# dic ={' name ': ' Xiao Wang ', ' Age ': ' Job ': ' Farmer ', ' hobby ': ' Play '}
# msg = " "
#------------Info of% (name) s-----------
# Name:% (name) s
# Age:% (age) D
# Job:% (Job) s
# Hobby:% (hobby) s
#-------------End-----------------
# "% dic
# Print (msg)
#格式化输出, in formatted output, the mere representation of% needs to be expressed in percent. 
msg= ' My name is%s, this year%s, learning Progress 2% '% (' Cool girl ', ' ")
Print (msg)

#while Else when the while loop is interrupted by a break, it does not go to the ELSE program. 
count=0
While count<=5:
count+=1
print ("Loop", Count)
if Count==4:break
Else:
print ("Loop normal execution")
print ("----out of a while loop----")

# operator

Print (2 > 1 and 3 < 4 or 8 <10 and 4 > 5)

#第一种情况 Logical operators are comparison operations before and after
#优先概念: () >not>and>or, the same priority is calculated from left to right. 
Print (2 > 1 and 3 < 4 or 4 > 5 and 2 < 1)
Print (1 > 2 and 3 < 4 or 4 > 5 and 2 > 1 or 9 < 8)
Print (1 > 1 and 3 < 4 or 4 > 5 and 2 > 1 and 9 > 8 or 7 < 6)

#第二种情况 logical operators are numbers before and after
" "
x or y if x True, return x, else y
" "
Print (3 or 5)
Print (2 or 5)
Print (0 or 5)
Print ( -4 or 5)
Print (3 and 5)
Print (0 and 3)
Print (1 or 3 or 4 or 0)
Print (1 or 3 or 0)
Print (1>2 and 3 or 4)
" "
#数字与bool值转化
#int--->bool not 0 True, 0 False
#bool0--->int True 1, False 0
" "
print (BOOL)
Print (bool (0))


#编码初识
First Knowledge password book: Asscii
Universal code: Unicode
Initial creation: 16-bit two bytes represents one character. 
Upgrade: 32-bit four bytes represents one character. 
Utf-8: A minimum of 8 digits to represent a character. 
utf-16: A minimum of 16 digits to represent a character
GBK: National Standard
ASSCII-->UNICODE-->UTF-8-->GBK
1024bytes =1kb
1024kb =1MB
1024MB =1GB
1024GB 1TB

python--formatted output, operator