vim：函数中未定义的变量

我的

.vimrc

文件包括以下几行：

let read_path = '/var/www/html/readContent.html'
function ReadContentProcess()
    if (expand('%:p') == read_path)
        call feedkeys("\<C-A>")
        call feedkeys("\<C-V>")
    endif
endfunction

---

为什么?？我已经将

read\u path

定义为一个变量，为什么vim告诉我它不存在？

变量有一个默认范围。在函数外部定义时，它具有全局作用域

g:

。在函数内部，它有一个局部作用域

l:

。因此，您需要通过在

read\u path

前面加

g:

let read_path = '/var/www/html/readContent.html'
function ReadContentProcess()
    if (expand('%:p') == g:read_path)
        call feedkeys("\<C-A>")
        call feedkeys("\<C-V>")
    endif
end function

let read_path = '/var/www/html/readContent.html'
function ReadContentProcess()
    if (expand('%:p') == g:read_path)
        call feedkeys("\<C-A>")
        call feedkeys("\<C-V>")
    endif
end function

global-variable g:var g: Inside functions global variables are accessed with "g:". Omitting this will access a variable local to a function. But "g:" can also be used in any other place if you like. local-variable l:var l: Inside functions local variables are accessed without prepending anything. But you can also prepend "l:" if you like. However, without prepending "l:" you may run into reserved variable names. For example "count". By itself it refers to "v:count". Using "l:count" you can have a local variable with the same name.