python For 循环的三种遍历 对python For 循环的三种遍历方式解析

array = ["a","b","c"]


for item in array:
  print(item)

 

for index in range(len(array)):
  print(str(index)+".."+array[index])


for index,val in enumerate(array):
print(str(index)+"--"+val);

a b c 0..a 1..b 2..c 0--a 1--b 2--c