# -*- coding: utf-8 -*-
"""
Created on Thu Oct 24 14:25:12 2019

@author: hallym
"""

a = "abc"
print(len(a))
print(a[1])

x,y,z = a
print(x)

astr='문자열입니다.'
rstr = []
for char in astr:
    rstr = [char] + rstr
print(rstr)
print(list(reversed(astr)))
print(astr[::-1])

aa = a +"ABC"
print(aa)
aaa = a * 3
print(aaa)

#-------------------------------------------
bb = 'A test string'
blist0 = bb.split()
blist1 = bb.split('i')
print(blist0, blist1)
#--------------------------------------------
mystr = 'abcdeabcab'
n0 = mystr.count('ab')
n1 = mystr.find('ab')
n2 = mystr.rfind('ab')
newstr = mystr.replace('ab', 'AB')
print(n0, n1, n2, newstr)

#--------------------------------------------
aa = -10.5
xx = 5.4
print(eval('xx+2*aa'))
print(eval('xx > 1'))

mystr = 'xx = xx + 2*aa'
exec(mystr)
print(xx)