原理：

　　由於Promise內部實現中，是否resolve由內部成功陣列的長度和傳入陣列的長度進行比較的，那麼在給失敗的Promise在catch的時候返回一個reolve狀態就可以啦。

上程式碼：

　　正常失敗情況：

let p1 = new Promise((resolve, reject) => { 
    setTimeout(resolve, 1000, 'one'); 
}); 
let p2 = new Promise((resolve, reject) => { 
    setTimeout(resolve, 2000, 'two'); 
});
let p3 = new
 
 Promise((resolve, reject) => {
    setTimeout(resolve, 3000, 'three');
});
let p4 = new Promise((resolve, reject) => {
    setTimeout(resolve, 4000, 'four');
});
let p5 = new Promise((resolve, reject) => {
    reject('錯誤');
})
  
Promise.all([p1, p2, p3, p4, p5]).then(values => { 
    console.log({values});
}, reason 
 
=> {
    console.log({reason});// reject
});

　　處理後：

let p1 = new Promise((resolve, reject) => { 
    setTimeout(resolve, 1000, 'one'); 
}); 
let p2 = new Promise((resolve, reject) => { 
    setTimeout(resolve, 2000, 'two'); 
});
let p3 = new Promise((resolve, reject) => {
    setTimeout(resolve, 
 
3000, 'three');
});
let p4 = new Promise((resolve, reject) => {
    setTimeout(resolve, 4000, 'four');
});
let p5 = new Promise((resolve, reject) => {
    reject('錯誤');
})
  
Promise.all([p1, p2, p3, p4, p5.catch((err) => Promise.resolve(err))]).then(values => { 
    console.log({values});
}, reason => {
    console.log({reason});// reject
});