python,lua,bash

传递参数

python[test.py]

import sys
a=sys.argv[1]
b=sts.argv[2]
print a,b

python test.py abc 1

torch[test.lua]

a=arg[1]
b=arg[2]

th test.lua acd 1
bash [test.sh]

#!/bin/bash
a=$1
b=$2

./test.sh 123 string

传递参数2

python [test.py]

import argparse
def main(params):
    jfile = json.load(open(params['input_json'], 'r'))
    names_train=jfile["unique_img_train"]
    names_test =jfile["uniuqe_img_test"]

    with h5py.File(params['input_h5'],'r') as hf:
        data1 = hf.get('attenmaps')
        attenmaps = np.array(data1)
        data2 = hf.get('imgidx')
        imgidx = np.array(data2)

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument('--input_h5', default='/home/c-nrong/VQA/HieCoAttenVQA2/data/vqa_data_prepro.h5', help='hdf5 file for attenmaps.')
    parser.add_argument('--body', default='abc\n')
    parser.add_argument('--ymd', nargs='+', default=['20190630', '201905avg'],help='') #列表型
    args = parser.parse_args()
    params = vars(args) # convert to ordinary dict
    print(params)
    print 'parsed input parameters:'
    print json.dumps(params, indent = 2)
    main(params)

调用的时候

python main.py --input_h5 "test" --ymd 20190530 201905avg 20190601

python test.py --input_json data/temp.json --input_h5 prep/data.h5

torch
http://blog.youkuaiyun.com/jiejinquanil/article/details/49659159

cmd = torch.CmdLine()
cmd:text()
cmd:text()
cmd:text(‘Training a simple network’)
cmd:text()
cmd:text(‘Options’)
cmd:option(‘-seed’,123,’initial random seed’)
cmd:option(‘-booloption’,false,’boolean option’)
cmd:option(‘-stroption’,’mystring’,’string option’)
cmd:text()
local opt = cmd:parse(arg)
print(opt)
local seed = opt.seed

th myscript.lua -seed 456 -stroption mycustomstring

可变参数

lua

http://www.runoob.com/lua/lua-functions.html
Lua函数可以接受可变数目的参数，和C语言类似在函数参数列表中使用三点（…) 表示函数有可变的参数。
Lua将函数的参数放在一个叫arg的表中，#arg 表示传入参数的个数。
例如，我们计算几个数的平均值：

function average(...)
   result = 0
   local arg={...}
   for i,v in ipairs(arg) do
      result = result + v
   end
   print("总共传入 " .. #arg .. " 个数")
   return result/#arg
end

print("平均值为",average(10,5,3,4,5,6))

output

总共传入 6 个数
平均值为	5.5

print

python

str="abc"
dd=123
print("this is string %s, value %d" %(str,dd))

torch

pi_name="abc"
pi=3.2
print(string.format("The value of %s is %d, isn't that cool?",pi_name, pi))

bash

a="abc"
echo "now print $a"
echo $a

exit

python

import sys
sys.exit()

torch

require 'os'
os.exit()

bash

exit 1
exit -1

子函数

python [need a main function]