1.for … in 循环
循环,遍历,迭代 都是指把容器中的数据一个一个获取出来
lst = [1,2,3,4,5]
i = 0
while i<len(lst):
print(lst[i])
i...+=1
# 无法用while 它的索引下标获取集合其中的值;
setvar = {
"a","b","c"}
for .. in .....,会改变你的一生"
for i in container:
print(i)
6.遍历字典
container = {
1:"a",2:"b",3:"c"}
for i in container...: for en in i: print(en) """
for en,line,i in lst:
print(en,line,i)
#en,line,i ("a","b","c")
9.遍历不等长的二级容器...i = 1
while i<=9:
j = 1
while j <= i:
print("%s*%s=%2s"% (i,j,i*j),end=" ")
j += 1
print()
i
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