前面shell的作用就是为python代码选择解析器
#!/bin/bash
# -*- mode: Python -*-
""":"
# bash code here; finds a suitable python interpreter and execs this file.
# prefer unqualified "python" if suitable:
python -c 'import sys; sys.exit(not (0x020500b0 < sys.hexversion /dev/null
&& exec python "$0" "$@"
for pyver in 2.6 2.7 2.5; do
which python$pyver > /dev/null 2>&1 && exec python$pyver "$0" "$@"
done
echo "No appropriate python interpreter found." >&2
exit 1
":"""
print 'Hello from python code'
命令行是万能的什么都能搞定，很多时候为了快捷，即便是本地开发也是一直使用命令行、vim等。
在新的工作环境里，年轻程序员非常多，互联网公司的技术和传统系统软件差异很大，很多也比较新潮。还有就是我买了个鼠标。。。
最近觉得MySQLWorkbench比较好用，特别是联合查询的复杂sql。下面顺便介绍一下用着很爽的一些图形化软件：
还不能接受的GUI工具
命令行工具：
使用lua编写游戏程序，往往使用c 或者 c++ 编写游戏引擎，那么就需要在lua中调用动态链接库，脚本语言写逻辑比低级语言方便。
//mylualib.c
#include
#include
#include
static int hello_c (lua_State *L) {
const char * from_lua = lua_tostring(L,1);
printf("Lua: %sn",from_lua);
lua_pushstring(L,"Hi Lua, nice to meet you");
return 1;
}
static const struct luaL_Reg mylualib [] = {
{"hello_c", hello_c},
{NULL, NULL} /* sentinel */
};
int luaopen_mylualib (lua_State *L) {
luaL_newlib(L, mylualib); /* register a array of c functions exported to lua */
lua_pushvalue(L, -1);
lua_setglobal(L, "mylualib"); /* the module name */
return 1;
}
# main.lua
require "mylualib"
hi = mylualib.hello_c("Hi C, I'm Lua")
print(hi)
#编译命令 gcc -O2 -bundle -undefined dynamic_lookup -o mylualib.so mylualib.c -I /usr/local/include/ #执行 lua main.lua
python里边相对简洁一些
//mylib.c
#include
int hello_c(char *str)
{
printf("output param: %sn", str);
return 0;
}
# main.py
#coding: utf-8
from ctypes import *
import os
#参数为生成的.so文件所在的绝对路径
libtest = cdll.LoadLibrary(os.getcwd() + '/mylib.so')
#直接用方法名进行调用
libtest.hello_c("Hello C, I'm calling you from Python")
#编译命令 gcc -O2 -bundle -undefined dynamic_lookup -o mylib.so mylib.c #执行 python main.py
Guido van Rossum is the creator and benevolent dictator for life (a.k.a. BDFL) of the Python programming language. Here he reflects on his path and shares what he’s been working on since joining Dropbox. Read on for this and a hint at what’s next for Dropbox, for Python, and for the BDFL himself.
You were an electronics hobbyist before becoming a programmer. How did you get started in electronics?
Okay, we’re going waaaay back. I don’t know exactly why I got into electronics as a kid. I remember that from the last grade in elementary school and probably through my second year in university, electronics kits and my own designs were one of my big passions.
It wasn’t always an easy path. In elementary school, I took one of the first projects I built into class as a show and tell project. There was no one who understood what it was or why it was interesting or cared. It’s a very vague memory. I just know that I took it in, and it fell flat.
Was there a time when you eventually found your people?
In high school, I hung out with a few other guys who had similar hobbies. We were all the geekiest kids in class.
I remember our physics teacher really encouraging us. The three of us worked together to build a large electronic device that was then used in demonstrations in front of the classroom. That was very satisfying.
Throughout high school, I had a very vague idea of what kinds of careers would be open to me. My general idea was that I was good at both sciences and languages and not so good in social areas. I ended up choosing mathematics.
How did you go from electronics to programming? Continue reading “(Python Author) Guido van Rossum on finding his way”
AMOS KONG 