Python3-for-enumerate

languages = ["C", "C++", "Perl", "Python"]for x in  languages :    print(x);sites = ["Baidu", "Google","Runoob","Taobao"]for site in sites :    if site == "Runoob":        print("Runoob : "+site)        break    else:        print("当前站点名称为" +site)print("完成循环")# 0,1,2,3,4,5,6,7,8,9,for i in range(10) :    print(i,end=" ")print("")# 5 6 7  左包含 右不包含for j in range(5,8):    print(j,end=" ")print("")#0 3 6 9  左包含 右不包含  从几开始 到几结束 步长多少for k in range(0,10,3) :    print(k,end=" ")print("")#-10 -40 -70 同上for m in range(-10, -100, -30) :    print(m,end=" ")print("")#range()和len()函数以遍历一个序列的索引a = ['Google', 'Baidu', 'Runoob', 'Taobao', 'QQ']for f in range(len(a)):    print(f,a[f])print("")#range()创建列表print(list(range(10)))print("")#enumerate 函数进行遍历sequence = [12, 34, 34, 23, 45, 76, 89]for i, j in enumerate(sequence):    print(i, j)