for循环主要用于循环取值
1 student=['egon','虎老师','lxxdsb','alexdsb','wupeiqisb'] 2 3 # i=0 4 # while i < len(student): 5 # print(student[i]) 6 # i+=1 7 8 # for item in student: 9 # print(item) 10 11 # for item in 'hello': 12 # print(item) 13 14 # dic={'x':444,'y':333,'z':555} 15 # for k in dic: 16 # print(k,dic[k]) 17 18 19 # for i in range(1,10,3): 20 # print(i) 21 22 # for i in range(10): 23 # print(i) 24 25 student=['egon','虎老师','lxxdsb','alexdsb','wupeiqisb'] 26 # for item in student: 27 # print(item) 28 29 for i in range(len(student)): 30 print(i,student[i])