30 lines
940 B
Dart
30 lines
940 B
Dart
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import 'dart:math';
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import 'package:crypto/crypto.dart';
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import 'dart:convert';
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class CommonUtil {
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static String generateMd5(String input) {
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List<int> bytes = utf8.encode(input); // 将字符串转换为字节码
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Digest md5Hash = md5.convert(bytes); // 对字节码进行MD5加密
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String encryptedString = md5Hash.toString(); // 获取加密后的字符串
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return encryptedString;
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}
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static String generateTicketNumber() {
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Random random = Random();
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int randomTwoDigitNumber = random.nextInt(99);
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String twoDigitNumber = randomTwoDigitNumber.toString().padLeft(2, '0');
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// 格式化数字串
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String formattedNumber =
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'${random.nextInt(9999999).toString().padLeft(7, '0')}${random.nextInt(9999999).toString().padLeft(7, '0')}-$twoDigitNumber';
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return formattedNumber;
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}
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static String firstUppercase(String text) {
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return '${text[0].toUpperCase()}${text.substring(1)}';
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}
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}
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