fix: 修复 multiple 和 surname 一同使用的情景

lib/core/pinyin/handle.ts

@@ -134,11 +134,17 @@ type GetMultiplePinyin = (
 const getMultiplePinyin: GetMultiplePinyin = (word, mode = 'normal') => {
   const wordCode = word.charCodeAt(0);
   const customMultpileDict = getCustomMultpileDict();
-  const pinyin =
-    customMultpileDict[wordCode] ||
-    (mode === 'surname' ? Surnames[word] : '') ||
-    DICT1[wordCode] ||
-    '';
+  let pinyin = DICT1[wordCode] || '';
+  if (customMultpileDict[wordCode]) {
+    pinyin = customMultpileDict[wordCode];
+  } else if (mode === 'surname') {
+    const surnamePinyin = Surnames[word];
+    pinyin = [
+      surnamePinyin,
+      pinyin.split(' ').filter(py => py !== surnamePinyin),
+    ].join(' ');
+  }
+  
   if (pinyin) {
     return pinyin.split(' ').map((value) => ({
       origin: word,

test/multiple.test.js

@@ -34,7 +34,7 @@ describe('multiple', () => {
 
   it('[multiple]multiple+surname同时使用', () => {
     const result = pinyin('能', { mode: 'surname', multiple: true });
-    expect(result).to.be.equal('nài');
+    expect(result).to.be.equal('nài néng');
   });
 
   it('[multiple]base', () => {