Python Basics - Control Statements

【Control Statement】

1 Conditional statement:

if (expression) :
    Statement 1
else :
    Statement 2

 

2 Conditional Statements:

if (expression) :
  Statement 1
elif (expression) :
  Statement 2
…
elif (expression) :
  statement n
else :
  statement m

 

3 Conditional nesting:

if (expression1) :
  if (expression2) :
    Statement 1
  elif (expression3) :
    Statement 2
  …
  else:
    Statement 3
elif(expressionn) :
   …
else :
   …

 

4 python itself has no switch statement.

5 loop statement:

while(expression) :  
…  
else :  
…

6 loop statement:

for variable in collection:  
…  
else :  
…

7 python does not support loop statements like c's for(i=0;i<5;i++), but it can be simulated with the help of range:

for x in range(0,5,2):  
　　print x