2021 year 9 month Python Analysis of real questions of level 2 programming test

Judgment questions （ common 10 topic , Each question 2 branch , common 20 branch ）

26、while Circulation and for-in The cycle is the same , Both specify the number of cycles

answer ： wrong

Test point analysis ： Examine circular knowledge ,while It is recommended to use when the number of cycles is not clear ,for It is recommended to use when the cycle is the number of ranking times , So the mistake

27、 have access to “+” and “-" To connect and delete strings

answer ： wrong

Test point analysis ： Check the string operation , String has no subtraction operation , Only the addition operation （ Connection string ）, So the mistake

28、 Different types of elements can be stored in the same list

answer ： Yes

Test point analysis ： Check the list , The elements in the list can be of different types , So it's right