Thread-ParameterizedThreadStart

namespace System.Threading {
    using System.Security.Permissions;
    using System.Threading;
    using System.Runtime.InteropServices;
 
    [ComVisibleAttribute(false)]
    public delegate void ParameterizedThreadStart(object obj);
}

这个也是一个委托，在实例化Thread时传入，有参数。下面这个方法是SetStart

        [System.Security.SecuritySafeCritical]  // auto-generated
        public Thread(ParameterizedThreadStart start) {
            if (start == null) {
                throw new ArgumentNullException("start");
            }
            Contract.EndContractBlock();
            SetStartHelper((Delegate)start, 0);
        }
 
        [System.Security.SecuritySafeCritical]  // auto-generated
        public Thread(ParameterizedThreadStart start, int maxStackSize) {
            if (start == null) {
                throw new ArgumentNullException("start");
            }
            if (0 > maxStackSize)
                throw new ArgumentOutOfRangeException("maxStackSize",Environment.GetResourceString("ArgumentOutOfRange_NeedNonNegNum"));
            Contract.EndContractBlock();
            SetStartHelper((Delegate)start, maxStackSize);
        }