监听-追溯

‘info.moduleNameSub’: {
handler(newVal, oldVal) {
if (newVal) {
const newPrefix = newVal.charAt(0).toUpperCase() + newVal.slice(1);
let currentBusinessName = this.info.businessName || ‘’;
// 替换旧前缀（如果有）
if (oldVal) {
const oldPrefix = oldVal.charAt(0).toUpperCase() + oldVal.slice(1);
currentBusinessName = currentBusinessName.replace(oldPrefix, ‘’);
}
this.info.businessName = newPrefix + currentBusinessName;
}
},
immediate: true // 初始化时立即执行