摘要:
public static void main(String[] args) { try { String mytext = java.net.URLEncoder.encode("上海南站", "utf-8"); System.err.println("mytext: " + mytex... 阅读全文
摘要:
#if表达式SELECT reg_no, IF(reg_no='718170554','黄色宾利','红色宾利') FROM car WHERE reg_no IN ('718170554','124553063');# CASE whenSELECT reg_no, CASE reg_no WHE... 阅读全文