python的​For语句循环怎么写？

For语句(遍历序列的元素)

for item in [3, 4, 10, 25]:

print item

# Print characters one at a time

for c in "Hello World":

print c

# Loop over a range of numbers

for i in range(0,100,2):

print i

for i in range(len(list1)):

print list1[i]