测试条件:
开启2个并行执行任务,往同一个StringBuilder对象写入值
测试代码:
static int maxNum = 1000000; static StringBuilder sbIsThreadSafe = new StringBuilder(); static void Main(string[] args) { //迭代次数 int iterationNum = 3; CodeTimer.Initialize(); CodeTimer.Time("StringBuilder是否是线程安全的呢?", iterationNum, new Action(SBIsThreadSafe)); //Console.Write(sbIsThreadSafe.ToString()); Console.Read(); } private static void SBIsThreadSafe() { Parallel.For(1, maxNum / 2, (i) => { sbIsThreadSafe.Append(i.ToString()); }); Parallel.For(maxNum / 2 + 1, maxNum, (i) => { sbIsThreadSafe.Append(i.ToString()); }); }
测试结果:
结论:
StringBuilder是线程安全的
时间: 2024-10-16 17:32:03