写了个函数接受varchar的参数, 但实际传入的是float, 但是转换后舍入成2位小数了, 单独执行没问题, 从table中查询输出就有问题 REF SELECT CAST(CAST(字段 AS DECIMAL(20,3)) AS VARCHAR(20)) FROM tableA 或者 SELECT CONVERT(VARCHAR(20),CONVERT(DECIMAL(20,3),字段)) FROM tableA
说反话-加强版(20 分) 给定一句英语,要求你编写程序,将句中所有单词的顺序颠倒输出. 输入格式: 测试输入包含一个测试用例,在一行内给出总长度不超过500 000的字符串.字符串由若干单词和若干空格组成,其中单词是由英文字母(大小写有区分)组成的字符串,单词之间用若干个空格分开. 输出格式: 每个测试用例的输出占一行,输出倒序后的句子,并且保证单词间只有1个空格. 输入样例: Hello World Here I Come 输出样例: Come I Here World Hello #inc
Scientific notation is the way that scientists easily handle very large numbers or very small numbers. The notation matches the regular expression [+-][1-9].[0-9]+E[+-][0-9]+ which means that the integer portion has exactly one digit, there is at lea
The basic task is simple: given N real numbers, you are supposed to calculate their average. But what makes it complicated is that some of the input numbers might not be legal. A legal input is a real number in [−1000,1000] and is accurate up to no m
On a broken keyboard, some of the keys are always stucked. So when you type some sentences, the characters corresponding to those keys will appear repeatedly on screen for k times. Now given a resulting string on screen, you are supposed to list all