#%% Change working directory from the workspace root to the ipynb file location. Turn this addition off with the DataScience.changeDirOnImportExport setting

import os

try:

os.chdir(os.path.join(os.getcwd(), 'learning_note\python_code'))

print(os.getcwd())

except:

pass

#%%

'''计算一段字符串长度'''

s1 = "hello world"

length = 0

for i in s1:

length = length+1

#每次循环增加一个数'''

print(length)

#打印出字符串长度数值'''

#%%

s2 = "hell eva"

length = 0

for i in s2:

length = length+1

print(length)

#%%

print(len(s1))

print(len(s2))

#%%

def mylen():

s1 = "hello world"

"""计算s1的长度"""

length = 0

for i in s1:

length = length+1

return length

#%%

str_len = mylen()

print('str_len : %s'%str_len)

#%%

def mylen(s1):

"""计算s1的长度"""

length = 0

for i in s1:

length = length+1

return length

str_len = mylen("你好世界，我是新手！")

print('str_len : %s'%str_len)