Python conditional statements and data types (i)

　

Cases:

if 1=1, then it will output "Hello World" otherwise 　　 Output "Hello penphy"

Code block:

1 if Conditions: 2   Print("helloWorld")3else:4  ("Error")

Note:The indent below the if is also a space, which represents the code block below if. (Indentation is not correct, will be error)

1 if 1 = = 1 :2     print("helloWorld")3  Else:4     print ("hello penphy" )

　　The 1=1 condition is true, so the second line of code is executed otherwise the condition does not hold the code of line fourth

1 if1 = = 12     if2 = = 23         Print("Hello World")4         Print("Hello Seattle")5     Else:6         Print("Hello Pengfei")7 Else:8     Print("Hello penphy")

　　

The above two graphs can be nested if else.

　　

1INP = input ('Please enter the name of the member:')2 ifINP = ="Senior Member"3     Print('Beauty')4 elifINP = ="Platinum Member"5     Print('Sports car')6 elifINP = ="Platinum Members"7     Print('First-line actress')8 Else:9     Print('Chengguan')Ten  One Print('Service Start ...')

---According to the above conditions, if you do not enter these membership words, will automatically output Chengguan

Summarize:

1. If basic statement

If condition :

Internal code block

Internal code block

Else

... #内部代码块 #

Print (' .... ')

Execute if execution condition is met

2. If support nesting

3 elif Statements

Extra supplement: Pass statement

Pass

If 1 ==1:

Pass

Else

Print (' Get out ')

Note: if 1 = = 1, then the program will skip execution

　　　　

　　　　　　　　　　　　

　　　　　　　　　　　　

Python conditional statements and data types (i)