input内强制保留小数点后两位 位数不足时自动补0 小数点后位数超出2位时进行四舍五入 需引入jquery包 1.11.2版本 1 function xiaoshu(x) 2 { 3 var f = parseFloat(x); 4 var f = Math.round(x*100)/100; 5 var s = f.toString(); 6 var rs = s.indexOf('.'); 7 if (rs < 0) { 8 rs = s.length; 9 s += '.'; 10 }
1067. Sort with Swap(0,*) (25) 时间限制 150 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 CHEN, Yue Given any permutation of the numbers {0, 1, 2,..., N-1}, it is easy to sort them in increasing order. But what if Swap(0, *) is the ONLY operation that
题目信息 1067. Sort with Swap(0,*) (25) 时间限制150 ms 内存限制65536 kB 代码长度限制16000 B Given any permutation of the numbers {0, 1, 2,-, N-1}, it is easy to sort them in increasing order. But what if Swap(0, *) is the ONLY operation that is allowed to use? For exa
mysql int类型字段插入空字符串时自动转为0 如果不想转的话可以修改配置文件 修改 my.ini 文件. # Set the SQL mode to strictsql-mode=”STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION” 改为: # Set the SQL mode to strictsql-mode=”NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION”
BEGIN#前提:指定字符串长度为8字符定长#逻辑:循环8次,比对2个字符串相同索引位置下的数值大小,并取结果最大值.#示例:merge1(输入参数source1,输入参数source2,输出结果result)#注意:输入参数必须是8位字符串 set @cindex=1; set result=''; WHILE @cindex<9 DO set @temp1=SUBSTR(source1,@cindex,1)+0; set @temp2=SUBST