Did you know our local fruit buah Salak is plenty of nutritional values? They are rich in proteins, vitamin C. iron, calcium, fiber and many more. They are also known to aid in weight loss, good for pregnant women, and consists of beta-carotene which are great for the eyes.
.
.
#Repost @outbackventure
• • • • • •
Ulu Kimanis, Sabah, Malaysia
Snake fruit is in the Arecaceae or palm family and botanically classified as Salacca Zalacca. In Malaysia and Indonesia, it was known as "Buah Salak" locally. But since it's thin scale-like skin very similar in appearance to that of a cobra or python, earned it the popular moniker, The snake fruit.
There are approximately about 30 different types of snake fruit grown throughout the native lands. While many can be brutally bitter when raw and used solely in cooking, the commonly cultivated types have a unique sweet and sour flavor and slightly acidic taste. The texture might be a bit unusual for some people who aren't used to it.
Despite this, it is a fruit that people come quickly to love and easy to eat straight out of its rinds. 😉👌🏻 Have any of you tried these salak fruits before? Let us know what do you think about it in the comment section down below! 🙌
.
.
📸 The wild snake fruit. Photo taken at Ulu Sawatan, Kimanis
#sabah #borneo #malaysia #tourism #photooftheday #nature #fun #photography #beautiful #enchantingsabah #travellater #traveltomorrow #fruit #fruits #localsnacks
python c types 在 Re: [問題] python ctypes調用dll問題 - 批踢踢實業坊 的推薦與評價
c_char_p 代表一個 char *, 而 byref 代表取 reference
所以（下面假設 function 是一個 C 函式）
pKey = c_char_p(0x010203040506)
function(byref(pKey))
大致上可以轉換成下面的 C 程式碼
char *pKey = 0x010203040506;
function(&pKey);
這應該不是你要的
你想做的應該是傳入 "\1\2\3\4\5\6" <-- 這是 C
ctypes 可以自動把 Python bytes 轉換成 C 的 char *
所以直接這樣寫應該就行了
# 設定引數型態, 讓 ctypes 知道怎麼轉換
dll.rf_M1_authentication2.argtypes = [c_ushort, c_ubyte, c_ubyte, c_char_p]
rf_M1_authentication2(icdev, key_model, block_b60, b'\1\2\3\4\5\6')
寫 ctypes 的時候要用 C 的方法來思考
它的所有的變數宣告基本上都可以直接對應到一個 C statement
所以其實可以先想好 C 怎麼寫, 再轉換成 Python + ctypes
這樣有時候會方便一些
※ 引述《waynezen (Wayne)》之銘言：
: 感謝!已經可以了，再請教個問題要傳入一組6Bytes命令,我使用c_char_p，但回應給我似乎只有4bytes沒有成功?
: ------------------------------------
: from ctypes import windll,byref,pointer,c_int,c_ushort,c_char,c_char_p
: import time
: dll = windll.LoadLibrary("MasterRD.dll")
: port = 1
: baud = 19200
: reader_model = 0x41
: icdev = 0
: msec = 10
: color = 2
: type = 0x41
: REQ_model = 0x52
: bcnt = 4
: key_model = 0x60
: block_b60 = 0x60
: block_b61 = 0x61
: block_b62 = 0x62
: block_b63 = 0x63
: pKey =c_char_p(0x010203040506)
: rf_M1_authentication2 = dll.rf_M1_authentication2(icdev,key_model,block_b60,byref(pKey))
: print rf_M1_authentication2
: X
--
--
※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 140.112.94.57
※ 文章網址: https://www.ptt.cc/bbs/Python/M.1432872560.A.821.html
※ 編輯: uranusjr (140.112.94.57), 05/29/2015 13:47:29
... <看更多>