python批量创建变量并赋值操作

exec ('print "hello world"')
hello world

exec ("temp%s=1"%1)

for i in range(10):
    exec ("temp%s=1"%i)

exec ("temp%s=%d"%(i,i))

temp1=1

df_vars = [ 'df_%s_head' %i for i in range(0,10)]

['df_0_head',
 'df_1_head',
 'df_2_head',
 'df_3_head',
 'df_4_head',
 'df_5_head',
 'df_6_head',
 'df_7_head',
 'df_8_head',
 'df_9_head']

 for i in range(8):
     exec('v' + str(i) + ' = ' + str(i))
     print('v' + str(i) + ':', eval('v' + str(i)))

a_1 = []
a_2 = []
a_3 = []
.....
a_100 = []

for i in range(1,100):
    b = 'a_' + str(i)
    exec(b + '= %r' % [])

year = [2018,2019,2020,2021,2022,2023] 
file_path = 'D:/MyData/Excel/input/MarketHoliday_'  #注意：这里一定要用单引号

import pandas as pd
year = pd.Series(year)
year_dict = year.to_dict()

for i in year_dict:
    exec('Var_'+str(year_dict[i])+'='+'"'+(file_path + str(year_dict[i])+'.xls'+'"'))
    print('Var_'+str(year_dict[i])+':',eval('Var_'+str(year_dict[i])))

t=['42342lh','234']
s='fgdfhdfhdfh'
exec(s+'=%s'%'t[0]')
print(fgdfhdfhdfh)
for i in range(2):
    m=f'names{i}'
    exec(m+'=%s'%'t[i]')
print(names1)