print('0123456789'[::2]) print('0123456789'[::3]) print('0123456789'[2:8:2]) print('0123456789'[9::-2]) print('0123456789'[::-2]) print('0123456789'[-1:-7:-2]) a = True print(type(a)) if None: print(true) else: print(False) if 0: print(true) else: print(False) if 0.0: print(True) else: print(False) if 0+0j: print(True) else: print(False) if '': print(True) else: print(False) b = 3 if b: print(True) if '\0': print(True) else : print(False) if ' ': print(True) else : print(False) print(bool(0)) print(bool(10)) print(type(120)) print(type(2147483648)) print(type(3.141592)) print(type(1.23456e3)) print(type('hello')) print(type("HelloWorld")) print(type(True)) print(type(False)) print(int(3.14)) print(int(3.6)) print(int(True)) print(int(False)) print(int('12345')) print(float(100)) print(float(True)) print(float(False)) print(float('3.141592')) print(float(314))