js 格式化货币

const amount = 123456.78;

// 格式化为人民币
const formatterCN = new Intl.NumberFormat('zh-CN', {
    style: 'currency',
    currency: 'CNY'
});
console.log(formatterCN.format(amount)); // 输出：¥123,456.78

// 格式化为美元
const formatterUS = new Intl.NumberFormat('en-US', {
    style: 'currency',
    currency: 'USD'
});
console.log(formatterUS.format(amount)); // 输出：$123,456.78

const formatterCN = new Intl.NumberFormat('zh-CN', {
    style: 'currency',
    currency: 'CNY',
    minimumFractionDigits: 2,
    maximumFractionDigits: 2
});