day5- basic data types summary

A digital 
int (..) 
two string 
replace / find / join / strip / startswith / split / upper / lower / format

= tempalte " I AM {name}, Age: Age {} " 
V = tempalte.format (name = ' Alex ' , Age =. 19 )
 Print (V) 
V = tempalte.format (** { " name " : ' Alex ' , ' Age ' :. 19 })
 Print (V) 
I AM Alex, Age: . 19 
I AM Alex, Age: . 19   # plus two does not affect the result **

Third, the list 
append, extend, insert 
indexing, slicing, cycle 
four-tuple 
is ignored: the list can be seen as a special form of 
indexing, slicing, circulation, and the elements can not be modified 
V. dictionary 
get / update / keys / values / items 
for, index

DIC = {
     " K1 " : ' V1 ' 
} 

V = " K1 "  in DIC
 Print (V)            # Note; the dictionary using the key In the operation returns to the non-value 
True 

V = " V1 "  in DIC
 Print (V) 
False 

v = " v1 "  in dic.values ()
 Print (v) 
True

Sixth, the Boolean value 
0. 1 
BOOL (...) 
appears where False: None "" () [] {} 0 ==> False