u, v, x, y = 0, 0, 100, 30   "htmlcode">

item_list = [3, "string1", 23, 14.0, "string2", 49, 64, 70] 
for x in item_list:   "found an integer divisible by seven: %d" % x)    
break   "htmlcode">

found an integer divisible by seven: 49



上面就是关于while和for循环的全部知识点，感谢大家的学习和对的支持。