Python base language and IF/WHILE statement structure

The next step is to learn the variables: replace complex strings with simple variables

the first letter of the variable cannot be a number or a special symbol ~! @#￥ and so on.

Development of character Sets:

ASCII 255a1an account1bytes------>1980yearsGB2312Support7thousand Men--------->1995years,GBK10, Support2Wmany men------>2000years,GB18030Support27000Many men,-----Unicode,Man accounted for2bytes, but English is not good to store------->utf8,1an English account1bytes,1a man accounted for3of bytes

Example One: ( compiled and run in Pycharm, followed by the same code)

Method One:

Name=input ("Name:")

Age=input ("Age:")

Job=input ("Job:")

Salary=input ("Salary:")

Info= ""

------Info of%---------

name:%

age:%

job:%

salary:%

"% (name,name,age,job,salary)

Print (info)

Method Two:

Name=input ("Name:")

Age=input ("Age:")

Job=input ("Job:")

Salary=input ("Salary:")

Info= ""

------info of {_name}--------

Name:{_name}

Age:{_age}

Job:{_job}

Salary:{_salary}

". Format (_name=name,_name=name,_age=age,_job=job,_salary=salary)

Print (info)

The following is the proofreading of the account password:

_username= ' Xiangxiao ' #(the default value is in single quotes)

_password= ' abc123 '

Username=input ("Username:")

Password=input ("passwoed:")

If _username==username and _password==password:

Print ("Welcome {name} come here ...". Format (name=username))

else:

Print ("Failed password or username")

Note : When compiling in Pycharm, pay attention to the first line indent,indentationerror to indicate indentation error

Circular precautions:

Break: ends the current loop

Continue: end this cycle and proceed directly to the next cycle

Example two: Guess the age, to achieve the actual age, ask to guess three age, more than three times, then exit the cycle;

oldboy_age_of=56

Count=0

While count<3:

Guess_age=int (Input ("Guess_age:"))

If Guess_age==oldboy_of_age:

Print ("You is Right")

Elif Guess_age<oldboy_of_age:

Print ("Please guess bigger")

else:

Print ("Please guess smaller")

If count==3:

Guess_confirm=input ("Does want to guess it?")

If guess_confirm! = ' n '

Count=0

Else

Print ("You have tried too much ...")

Python base language and IF/WHILE statement structure