Use pyhton ternary generator

# Ternary iteration 

List1 = [1,2,3,4] 
# List List 
A = [I for I in List1] 
# Generator Generator (simple point is appreciated that a generator iterator) 
'' ' 
benefits generator : 
1. small memory, and the like do not need to be loaded like a list of all the elements in the memory into iterator 
2. high efficiency, no conversion to iterator 
'' ' 
# + three yuan generator 
b = (i for i in List1 IF I> 2) 
for I in B: 
    Print (I) 
# iterator 
C = List1 .__ ITER __ () 
Print (type (a)) 
Print (type (B)) 
Print (type (C)) 

# generator use 
DEF Genl (): 
    the yield. 1 
    the yield 2 
    the yield. 3 
Gen = Genl () 
Print (Next (Gen)) 
Print (Next (Gen)) 
Print (Next (Gen)) 

DEF Gen2 (name): 
    the while True:
        # Res accepts values gen.send (obj) pass (Note: name and pass no necessary relationship parameter) 
        RES = the yield "name: S%"% name 
        name = RES 
Gen = Gen2 ( "LDS") 
Print (Gen .send (None)) 
Print (gen.send ( "123")) 
Print (gen.send ( "1234"))