1.geting start
literal string ""
single charator ''
string that are used as pattern '' eg: '[%w_]'
书本后面又说用“”和‘’都可以，选择一种正确的形式就可以，到底要不要遵循这个规定呢？而且看了例子还是不理解pattern
2.如果Lua代码里有两个函数同名的函数怎么办
eg: % lua -e "print(math.sin(x))"
x = 1
print(math.sin(x))
x = 2
print(math.sin(x))
x在不同区段的值不一样，那到底是输出哪个函数呢？
3.for instance in the use of nil to differentiate a normal return value from an abnormal condition.求具体的例子
4.a Lua number can represent any 32-bit integer without rounding problems整数怎么会出现四舍五入？
5.it is easy to compile Lua so that it uses another type for numbers, such as longs or single-precision floats. This is particularly useful for platforms without hardware support for floating point. 求解释
6.luaconf.h 在哪里？（ubuntu 12.04）
7.Strings in Lua have the usual meaning: a sequence of characters.Lua is eight-bit clean and its strings may contain characters with any numeric code,including embedded zeros. This means that you can store any binary data into a string
8.Moreover, this form ignores the first character of the string
when this character is a newline.
literal string ""
single charator ''
string that are used as pattern '' eg: '[%w_]'
书本后面又说用“”和‘’都可以，选择一种正确的形式就可以，到底要不要遵循这个规定呢？而且看了例子还是不理解pattern
2.如果Lua代码里有两个函数同名的函数怎么办
eg: % lua -e "print(math.sin(x))"
x = 1
print(math.sin(x))
x = 2
print(math.sin(x))
x在不同区段的值不一样，那到底是输出哪个函数呢？
3.for instance in the use of nil to differentiate a normal return value from an abnormal condition.求具体的例子
4.a Lua number can represent any 32-bit integer without rounding problems整数怎么会出现四舍五入？
5.it is easy to compile Lua so that it uses another type for numbers, such as longs or single-precision floats. This is particularly useful for platforms without hardware support for floating point. 求解释
6.luaconf.h 在哪里？（ubuntu 12.04）
7.Strings in Lua have the usual meaning: a sequence of characters.Lua is eight-bit clean and its strings may contain characters with any numeric code,including embedded zeros. This means that you can store any binary data into a string
8.Moreover, this form ignores the first character of the string
when this character is a newline.
1
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