Little Turtle Python Video Sixth lecture (Notes and program source code)

Today I learned mainly about the main points of the cycle,

1.use ofelif

 whiletrue:temp= Input ("Please enter a score:") score=int(temp)if  ->= score >= -: Print ("A") Elif ->= score >= the: Print ("B") Elif the>= score >= -: Print ("C") Elif ->Score:print ("D")    Else: Print ("Input Error")

2. Use ofassert :

When the following condition is true, the error occurs when the condition is false.

3. Ternary conversion

4,5if x > y    = yelse:    = x

Equivalent to:

if Else y

That is, the x if condition else y

Noun Explanation:

Membership operators

Hands-on section: The classification of fractions, adding a cycle of their own parts,

 whiletrue:temp= Input ("Please enter a score:") score=int(temp)if  ->= score >= -: Print ("A") Elif ->= score >= the: Print ("B") Elif the>= score >= -: Print ("C") Elif ->Score:print ("D")    Else: Print ("Input Error")

(note not added, back one by one plus)

Score =int(Input ('Please enter a score:'))if  the> Score >= -: Print ('C') Elif -> Score >= the: Print ('B') Elif -> Score >=0: Print ('D') Elif ->= score >= -: Print ('A')Else: Print ('input Error! ')

(Source code)

On the ternary conversion

6 5 4 if x < y:    = x    if z < small:        =< z:< c13/>= yelse:    = Z

if Else if else z)

Little Turtle Python Video Sixth lecture (Notes and program source code)