Python勉強0 day_基礎知識

10405 ワード

  print()
 1 print("Hello Python") 


1.'#'
2. 。

+
, , , ,

,python 。
   :WeLovePython 。
   :weLovePython 。


   Number
   str
   tuple
   Dictionary
   set

1 import keywordi
2 print(keyword.kkwlist)



: '\' 。
1 s = 'I\'am Chinese'
2 t = 'C:\\user'



   。
    1. '%',
    2. format
1 print("%s Love Python"%"I")
2 print("I am a %s,I'am %d years old "%('student',20))
3 print("I Love {}".format("Python"))

 
     
  
         :'+' '-' '*' '/' '%' '// ' '**'
     : '==' '>' '=' '<=' '!='
     :'=' '+=' '-=' '*=' '/=' '//=' '%=' '**='
     :and,or,not
     :in,not in
    
   , ,

 

if :
1
2
3
......


1 age = int(input(""))
2 if age < 18:
3     print("        ")
4 else:
5     print("    ")

 


for in :
1
2
......

1 for name in ['  ', '  ', '  ']:
2     print(name)
3 for i in range(1, 10):   # range()             
4     print(i)

while :



  -----break,continue,pass

    break:
    contonue: ,
    pass:

for i in range(1, 10):
    if i == 3:
        print('     ')
        continue
    elif i == 5:
        print("   ")
        break
    else:
        print(i)

 




   , ,

 1 #          
 2 def func1():
 3     print("      ")
 4 #          
 5 def func2(a):
 6     a +=10
 7     print(a)
 8 #            ,    return,      None
 9 def func3(c):
10      c += 10
11      return c
12 func1()
13 func2(1)
14 print(func3(5))

 


  help()


1 for a in range(1,10):
2     for b in range(1, a+1):
3         print('%d*%d=%d '%(a, b, a*b), end="")
4     print("")

 


 



転載先:https://www.cnblogs.com/Burtit/p/9279890.html