JavaScript 获取中文字符串 GBK 编码长度

function getGBKLength(str) { let bytesCount = 0; for (let i = 0; i < str.length; i++) { const charCode = str.charCodeAt(i); if (charCode <= 127) { bytesCount += 1; } else { bytesCount += 2; }
} return bytesCount; }

const chineseString = '你好，世界！'; const gbkLength = getGBKLength(chineseString); console.log('${chineseString}' 的 GBK 编码长度为 ${gbkLength} 字节。);