js回调函数，匿名函数默认参数传参

function all(call_fun) {
    var k = 0
    for (var i = 0; i < 10099990; i++) {
        k = k + i
    }
    console.log(arguments[0].toString())
    call_fun(k)
}


all(function (k) {
    console.log(k)
})
function all(call_fun) {
    var k = 0