Python's basic statement

If condition statement

(1) If condition judgment: (colon)

If 1==1:

Print (' Really nothing ')

Else

Print (' It will be later ')

Description of the # # # code block: In the same column as the code block, as above, if the print is a block of code.

# # #一般为空4格为标识, or press the TAB key directly.

(2) If the nesting:

If n==1:

Print (' haha ')

If n==2:

Print (' hehe ')

Else

Print (' hehe ')

Else

Print (' haha ')

# #注意代码块 ...

(3) Use of If elif:

If n==1:

Print (' Hello ')

Elif n==2:

Print (' Years later ')

Elif n==3:

Print (' True fragrance ')

Else

Print (' SB ')

If you want direct else, you need to:

If n==1:

Pass keyword: Do not perform the current direct skip.

else:

Print (' SB ')

How to use the while:

(1) While Count ==1:

Print ("haha")

You also need to be aware of code blocks when you use them.

(2) Use of while else

While Count <10:

Print ("haha")

Count =count +1

Else

Print ("hehe")
Pay attention to the code block when using

(3) Continue break

While count<10:

If count==7:

Count=count+1

Print (' haha ')

Continue

Else

Print (' haha ')

Count=count+1

The use of continue is that when the if is met, if is encountered continue, the if is returned and the execution continues. That is, when =7, continue to the else output haha

Break, the effect of break is to jump out of all loops.

To the previous supplement:

(1) When a real string can only be "" "" "" "" "in several ways

　　

Python's basic statement