function test(a,b,c){
console.log(arguments.callee.length)
console.log(test.length)
console.log(arguments.length)
}
test(1,2)
运行结果
function test(a,b,c){
console.log(arguments.callee.length)
console.log(test.length)
console.log(arguments.length)
}
test(1,2)
运行结果