下面这个函数中的"in ({0})"表示的是什么意思呢?
public void In(string[] args) {
string condition = queryCondition == null ? fieldName + " in ({0})" : " and " + fieldName + " in ({0})"; }
public void In(string[] args) {
string condition = queryCondition == null ? fieldName + " in ({0})" : " and " + fieldName + " in ({0})"; }
查阅SQL的书。
Console.WriteLine("hello {0}",str);你运行一下就知道了 。
跟java中的?一个道理
应该是占位符,Console.WriteLine("{0} This is C# Program !",str);