CONDITION=1

while CONDITION <=5 :

    CONDITION +=1

    print("hello")

else:

    print("EOF")

hello

hello

hello

hello

hello

EOF

# 主要是用来遍历/循环 序列或者集合、字典

a=[["a","b","c","d"],(1,2,3)]

for x in a:

    for y in x:

        print(y)

       # print(y,end='') #end 在一行 打印

else:

    print("fruit  is gone")

结果：

a

b

c

d

1

2

3

fruit  is gone

a=[["a","b","c","d"],(1,2,3)]

for x in a:

    for y in x:

        if y == 'b':

            break

        print(y)

else:

    print("fruit  is gone")

a

1

2

3

fruit  is gone

a=[["a","b","c","d"],(1,2,3)]

for x in a:

    for y in x:

        if y == 'b':

            continue

        print(y)

else:

    print("fruit  is gone")

a

c

d

1

2

3

fruit  is gone

for x in range(0,10,2):

    print(x, end=' | ' )
0 | 2 | 4 | 6 | 8 |

a=[1,2,3,4,5,6,7,8]

for i in range(0,len(a),2):

    print(a[i],end=' | ')

1 | 3 | 5 | 7 |

b=a[0:len(a):2]

print(b)

[1, 3, 5, 7]

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        "**/.git": true,

        "**/.svn": true,

        "**/.hg": true,

        "**/CVS": true,

        "**/.DS_Store": true,

        "**/__pycache__":true

    }