如果while循环条件为<；6（即一个循环），但如果将其设置为<6；7个或更多（即1个以上回路）

var data = {
    a: "abc",
    c: 0
}

function recurse(data, nodes) {
    const first = nodes.shift();
    console.log("first-"+first.id, first.t);

    if (first.t == "action") {
        data.c = data.c + 1;
        console.log("exec action", data.c);
    } else {
        switch (first.t) {
            case "if_else":
                console.log(recurse(data, first.b[0].actions), 300);
                break
            case "while":
                var brNodes = first.b[0].actions
                while (data.c < 7) {
                  console.log(recurse(data, brNodes), 400);
                }
                break
            default:
                break
        }
    }
    
    return (nodes.length > 0)? console.log(recurse(data, nodes), 200): "Completed"
} 

var actions = [
    {id:1, t:"action", b:null},
    {id:2, t:"action", b:null},
    {id:3, t:"if_else", b:[{id:31, t:"branch", actions:[{id:311, t:"action", b:null}, {id:312, t:"action", b:null}]},{id:32, t:"branch", actions:[{id:321, t:"action", b:null}]}]},
    {id:4, t:"action", b: null},
    {id:5, t:"while", b:[{id:500, t:"branch", actions:[{id:511, t:"action", b:null}]}]},
    {id:6, t:"action", b:null}
]

console.log(recurse(data, actions), 100) 

下面是我在StackBlitz上的测试https://StackBlitz.com/edit/recurse?file=index.js