四则运算如下: --加减乘除(+.-.*.\.%)取余运算 SELECT --加法运算 AS 加法结果2, --减法运算 -2.5 AS 减法结果1, 15.5+5.5 AS 减法结果2, --乘法运算 AS 乘法结果2, --除法运算 *3.5 AS 除法结果2, --取余运算 AS 取余结果2 GO 结果: 比较运算: --比较(>.<.>=. <=. =. <>)运算 --大于 SELECT '5大于3' ELSE SELECT '5小于或等于3' --小于 SE
与SAP RFC连接,电脑上必须要安装SAP软件,否则会报错ActiveX 输入工单号,无法带出SAP内接口RFC信息. 确认原因为:RFC接口需求的工单参数需要在前面加两位00,例如:1000541078(10个字符)改为 001000541078(12个字符),解决办法:使用string.PadLeft(12, "0")函数,自动补全左边两位00 RFC调用方法案例: Public SAPojb As Object Public SAPConn As Object Public S
Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example,S ="ADOBECODEBANC"T ="ABC" Minimum window is"BANC". Note: If there is no such window in
String s = null; s += "hello"; System.out.println(s); 结果为:nullhello 原因: 先应用String.valueOf 得出s的value值,再通过StringBuilder拼接hello,因此将value与hello进行了拼接: String s = null; s = (new StringBuilder(String.valueOf(s))).append("hello").toString();
Description Given two strings, you have to tell the length of the Longest Common Substring of them. For example:str1 = bananastr2 = cianaic So the Longest Common Substring is "ana", and the length is 3. Input The input contains several test case