局部
local 指令用于声明一个新的局部变量。
试一试
(module
(import "console" "log" (func $log (param i32)))
(func $main
(local $var i32) ;; create a local variable named $var
(local.set $var (i32.const 10)) ;; set $var to 10
local.get $var ;; load $var onto the stack
call $log ;; log the result
)
(start $main)
)
const url = "{%wasm-url%}";
await WebAssembly.instantiateStreaming(fetch(url), { console });
语法
wat
;; declare new variable named $val of type i32
(local $val i32)