04 2023 档案
摘要:access 查询报“提供程序无法确定 Object 值.例如,该行刚刚创建,未提供 Object 列的默认值,并且” System.InvalidOperationException: The provider could not determine the Object value. For e
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摘要://引入命名空间:using System.Runtime.InteropServices; [DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)] private static extern bool Set
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摘要:启动程序: string path="d:\\test.exe"; //外部winform程序 string args = "aa bb cc"; System.Diagnostics.Process.Start(path,args); //启动程序 外部winform程序test.exe接收参数:
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