PYTHON_2.pptx
- Количество слайдов: 13
Управляющие конструкции
Оператор условия и выбора if a > b: c=a else: c=b
Оператор условия и выбора var = 100 if ( var == 100 ) : print "Value of expression is 100"
Оператор условия и выбора if a < 0: s = -1 else: if a == 0: s=0 else: s=1
Оператор условия и выбора if x < 0: x=0 print 'Negative changed to zero' elif x == 0: print 'Zero‘ elif x == 1: print 'Single' else: print 'More'
Оператор цикла FOR for num in range(10, 20): for i in range(2, num): if num%i == 0: j=num/i print '%d equals %d * %d' % (num, i, j) break else: print num, 'is a prime number'
Оператор цикла FOR for letter in 'Python': print 'Current Letter : ', letter fruits = ['banana', 'apple', 'mango'] for fruit in fruits: # Second Example print 'Current fruit : ', fruit
Оператор цикла FOR fruits = ['banana', 'apple', 'mango'] for index in range(len(fruits)): print 'Current fruit : ', fruits[index]
Оператор цикла FOR for letter in 'Python': if letter == 'h': continue print 'Current Letter : ', letter
Оператор цикла WHILE count = 0 while (count < 9): print 'The count is: ', count = count + 1
Оператор цикла WHILE var = 1 while var == 1 : num = raw_input("Enter a number : ") print "You entered: ", num
Оператор цикла WHILE count = 0 while count < 5: print count, " is less than 5" count = count + 1 else: print count, " is greater than 5"
Оператор цикла WHILE var = 10 while var > 0: var = var -1 if var == 5: continue print 'Current variable value : ', var
PYTHON_2.pptx