C# 中拼接字符串时多余0怎么去除，以及换行符问题

Question

拼接字符串后小数点多了0，之前为decimal类型，拼接后加入换行符只是多了空格，DataTable dr = new DataTable();部分代码

DataTable dr = new DataTable();

 string a = d3["element"].ToString();
 string b = d3["lower"].ToString();
 string c = d3["upper"].ToString();
 string d = d3["proportion"].ToString();
 string e = d3["amount"].ToString();

 str = b + "≤" + a + "<" + c + "每" + d + "%调整" + e;
str = b + "<" + a + "≤" + c + "每" + d + "%调整" + e;
dr.Rows[i - 1]["ruleFe"] += str + "\r\n";

 

Answer 1

试试

decimal b = d3["lower"].ToString();

str =string .format( "{0}<{1}≤{2}每{3}%调整{4}",a,b,c,d, e);