if statement
if 9 > 5:
print(" 9 is great than 5")
print(" End of Program")
Two important things
- A colon":" is required after the condition
- Ident with at least one space
x = 1 y = 2 if x > y: print(" x is larger") else: print(" x is not larger")
Important: The colon after the key word else!
number = 3 if number == 1: print("one") elif num == 2: print("two") elif num == 3: print("three") else: print("something different")
while loop
i=1 while i<=5: i = i + 1 print(i)
infinite loops
i = 0 while True: print(i) if i >= 6 print("leave the loop" break print("Done...")
continue will end a block in a loop. It will force the program counter to jump back to the next test in the while condition
i = 0 while i<6: i += 1 if i == 3: print(" Will skip rest of block...") continue print(i)
for Loop
days =["Monday", " Tuesday", "Wednesday", "Thursday", " Friday", "Saturday", "Sunday"] for day in days: print(day +"!")
for loops can iterate over strings
str = "this is a string" count=0 for x in str: if(x == "t"): count += 1 print(count)
break and continue can be used in the for block
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