The basic string types

 

String (in quotes):

　　　　name = "我是xx"　　name = 'xx'　　name = '''xxx'''　　name  """xxx"""

　　String addition:

　　　　n1 = "xx" n2 = "nb" n3 = n1 + n2 n3 = "xxnb" two strings are added　

　　String multiplication:

　　　　n1 = "alex" n2 = n1 * 10 print ten times alex　

　　digital:

　　　　a1 = 10 a2 = 20 age = 13 # number can not quotes

　　　　a3 = a1 + a2 a3 = a1 - a2 a3 = a1 * a2 a3 = a1 / a2 a3 = a1% a2 # acquires remainder a3 = a1 // a2 rounded

Loop: while

　　Endless loop

　　　　while 1==1:
　　　　　　print('ok')

Exercise: 1 while loop input 12345689

　　　  2. All numbers 1-100 and seek

　　　 3. Enter all odd 1-100

　　　　4. Enter the number of all the even-numbered 1-100

　　　　The request 1-2 + 3-4 + 5 .. . 99 and the number of all

　　　　6. User Login (three opportunities)

 

 

 

 

 

　　Out of the loop continue terminates the current cycle, a cycle break the cycle at the beginning of an end to all