将数字转汉字处理

在不方便安装第三方库的情况下，需要的可以直接复制使用即可，不支持负数懒得写了
`numberToChineseInteger(num) {
if (num === 0) return '零';
if (num < 0 || !Number.isInteger(num)) return '';

			const digits = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
			const units = ['', '十', '百', '千'];
			const bigUnits = ['', '万', '亿', '兆', '京', '垓', '秭', '穰', '沟', '涧', '正', '载', '极', '恒河沙', '阿僧祇', '那由他',
				'不可思议', '无量大数', '古戈尔'
			];

			let result = '';
			let unitPos = 0;
			let lastSectionHasValue = false;

			while (num > 0) {
				const section = num % 10000;
				num = Math.floor(num / 10000);

				let sectionStr = '';
				let temp = section;
				let hasValue = false;
				let zeroFlag = false;

				for (let i = 0; i < 4 && temp > 0; i++) {
					const digit = temp % 10;
					temp = Math.floor(temp / 10);

					if (digit !== 0) {
						if (zeroFlag) {
							sectionStr = digits[0] + sectionStr;
							zeroFlag = false;
						}
						// 处理"一十"的情况（省略"一"）
						if (digit === 1 && i === 1 && temp === 0) {
							sectionStr = units[i] + sectionStr; // 直接拼接"十"，不拼接"一"
						} else {
							sectionStr = digits[digit] + units[i] + sectionStr;
						}
						hasValue = true;
					} else if (sectionStr.length > 0) {
						zeroFlag = true;
					}
				}

				if (hasValue) {
					sectionStr += bigUnits[unitPos];
					result = sectionStr + result;
					lastSectionHasValue = true;
				} else if (lastSectionHasValue && num > 0) {
					result = digits[0] + result;
					lastSectionHasValue = false;
				}

				unitPos++;
			}

			return result;
		}`