https://blog.csdn.net/alone5256/article/details/108491749
改进 全局替换
CHARACTER SET utf8mb4 COLLATE utf8_unicode_ci =》
CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci
CHARACTER SET = utf8mb4 COLLATE = utf8_unicode_ci =》
CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci
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