Python programming : Control statements

Python programming : Control statements

• 1.
  Control Statements Team Emertxe
• 2.
  Single Control Statements
• 3.
  If Statements If-Else  Syntax ifcondition: statements else: statements  Example if num % 2: print("ODD") else: print("EVEN")
• 4.
  If Statements If-Elif-Else  Syntax ifcondition1: statements elif condition2: statements else statements  Example if num == 1: print("You entered 1") elif num == 2: print("You entered 2") else: print("You entered 3")
• 5.
  Multiple Control Statements
• 6.
  Multiple Statements While  Syntax whilecondition: statements  Example i = 1 while i <= 10: print(i) i = i + 1
• 7.
  Multiple Statements For  Syntax forvar in sequence: statements  Example-v1.1 str = "Hello" for ch in str: print(ch, end='')  Example-v1.2 n = len(str) for i in range(n): print(str[i])
• 8.
  Else Suite
• 9.
  Multiple Statements For withElse suite  Syntax for var in sequence: statement / statements else: statement / statements  Example for i in range(5): print(i) else: print("Over")
• 10.
  Multiple Statements While withElse suite  Syntax while condition: statement / statements else: statement / statements  Example i = 0 while i < 5 print(i) i += 1 else: print("Over") While searching an elemnt in the sequence is not found, else will be the best option to display the item not found
• 11.
  Misc Statements
• 12.
  Misc Statements Break  Example x= 10 while x >= 1: print("x = ", x) x -= 1 if x == 5: break
• 13.
  Misc Statements Continue  Example x= 10 while x >= 1: if x == 5: x -= 1 continue print("x = ", x) x -= 1
• 14.
  Misc Statements Pass  Example-1 x= 0 while x < 10: x += 1 if x == 5: pass print(x)
• 15.
  Misc Statements Pass  Example-2:Program to retrieve only the negative numbers from the list num = [1, 2, 3, -4, -5, -6, 7, 8] for i in num: if (i > 0): pass else: print(i) Pass does nothing
• 16.
  Misc Statements Assert  Syntax: assertexpression, message  Example-1 num = int(input("Enter the number greater than zero: ")) assert num > 0, "Wrong input" print("Num: ", num)
• 17.
  Misc Statements Assert: TryExcept  Example-1 num = int(input("Enter the number greater than zero: ")) try: assert num > 0, "Wrong input" print("Num: ", num) except AssertionError: print("You entered wrong input") print("Enter positive number")
• 18.
  Misc Statements Return  Example-1:To add two numbers & return the result def sum(a, b): return a + b res = sum(5, 10) print(res)
• 19.
  THANK YOU