python-Loop (for, while), Judgment, string formatting

Python for Loop

ImportRandomrandom_num=random.randint (1,1000)Print(random_num); forIinchRange (3): Num=int (Input ('Please enter'))    ifNum>Random_num:Print('it's too big.')    elifnum<Random_num:Print('it's too small.')    Else:        Print('guess right.')

While loop

# loop, iterate, traverse # For Loop #  while # The loop is a repetition of what you do. # Specify a loop end condition # with a while loop, you have to have a counter # continue end this cycle and proceed to the next cycle # Break End Loop

Count=0#counter whileCount<3: Username=input ('Please enter your username:') PWD=input ('Please enter your pwd:')    ifusername=='Nhy'  andpwd=='123456':        Print('Welcome to visit')         Break    Else:        Print('account/Password Error! ') Count+=1Else:    Print('excessive number of errors')

Judge

Score=input ('Please enter your score:')#input received is all str type#int coercion type conversionScore=Int (score)ifScore<60:    Print('inferior lattice')    ifScore>50:        Print('hahaha')    elifScore<50:        Print('Little Fool .')    Else:        Print('-----')elifScore>=60 andScore<80:    Print('Pass')elifScore>=80 andScore<90:    Print('Good')Else:    Print('Excellent')

String

 forIinchRange (5): Username=input ('Please enter your name:') Time='December 17, 2017 17:30'    Print(username+', welcome,'+'time is:'+time)#stitching two strings with a plus sign    Print('%s, welcome, time is:%s'%(username,time))Print(        '{name}, welcome, time is: {date}, tomorrow's time is {date}'. Format (name=username,date=Time ))

python-Loop (for, while), Judgment, string formatting