在邮件c#中同时追加输出和字符串？

目前我正在使用下面的1个代码，它工作得非常好

我正在获取服务器的CPU和内存利用率，并在循环10-15秒后发送邮件。此循环运行5次，间隔10秒

它发送了5封邮件

我只想发送一封邮件，而不是发送5封不同的邮件。每行下面有5行

for (int i = 0; i < 5; i++)
{
    float cpu = getCPUCOunter();

    float memory = getRamCounter();

    ulong TotalMemory = new Microsoft.VisualBasic.Devices.ComputerInfo().TotalPhysicalMemory;

    TotalMemory = TotalMemory / 1024000;

    float PhysicalMemory = (TotalMemory - memory) * 100 / TotalMemory;

    SendMail("PROD Server CPU and Physical Memory Utalization", 
            "CPU Utilization =  " + Math.Round(cpu) + "%\r\n" 
             + Environment.NewLine + " \nPhysical Memory Utilization " + 
             Math.Round(PhysicalMemory) + "%" + Environment.NewLine + 
             " at " + DateTime.Now.ToString("HH:mm:ss tt"));
    Thread.Sleep(10000);
}

预期输出（一封邮件中的所有行）：

---

只需将消息附加到字符串，并在最后发送所有内容：

string msg = string.empty
for (int i = 0; i < 5; i++)
{
    float cpu = getCPUCOunter();

    float memory = getRamCounter();

    ulong TotalMemory = new Microsoft.VisualBasic.Devices.ComputerInfo().TotalPhysicalMemory;
    TotalMemory = TotalMemory / 1024000;

     float PhysicalMemory = (TotalMemory - memory) * 100 / TotalMemory;

     msg += "CPU Utilization =  " + Math.Round(cpu) + "%\r\n" + Environment.NewLine + " \nPhysical Memory Utilization " + Math.Round(PhysicalMemory) + "%" + Environment.NewLine + " at " + DateTime.Now.ToString("HH:mm:ss tt") + Environment.Newline;
     Thread.Sleep(10000);
}

SendMail("PROD Server CPU and Physical Memory Utalization", msg)

string msg=string.empty
对于（int i=0；i<5；i++）
{
浮点cpu=getCPUCOunter（）；
浮点内存=getRamCounter（）；
ulong TotalMemory=新的Microsoft.VisualBasic.Devices.ComputerInfo（）.TotalPhysicalMemory；
TotalMemory=TotalMemory/1024000；
float PhysicalMemory=（总内存-内存）*100/总内存；
msg+=“CPU利用率=“+Math.Round（CPU）+”%\r\n“+Environment.NewLine+”\n物理内存利用率”+Math.Round（PhysicalMemory）+“%”+Environment.NewLine+”在“+DateTime.Now.ToString”（“HH:mm:ss tt”）+Environment.NewLine；
睡眠（10000）；
}
SendMail（“产品服务器CPU和物理内存优化”，msg）

捕获数组中的值，并将“SendMail”方法调用移出for循环语句

---

在此for循环之后创建另一个for循环，以将存储在数组中的值显示为行数。

您编写了所有代码，但不知道StringBuilder？StringBuilder与问题并不相关。@ShellShock查看接受的答案，并将

string msg

替换为

StringBuilder msg

，这是推荐的方法。你现在能看到相关性吗？仍然不相关；问题不在于串接字符串的最有效方式。在这种情况下，StringBuilder是否“最佳”是有争议的，因为与字符串相比，它失去了一些可读性。它不接受换行符，它只是并排追加。我认为换行符不会在两行之间添加新行。

CPU Utilization = 0% Physical Memory Utilization 61% at 14:06:32 PM 
CPU Utilization = 0% Physical Memory Utilization 61% at 14:06:32 PM 
CPU Utilization = 0% Physical Memory Utilization 61% at 14:06:32 PM 
CPU Utilization = 0% Physical Memory Utilization 61% at 14:06:32 PM 
CPU Utilization = 0% Physical Memory Utilization 61% at 14:06:32 PM 

string msg = string.empty
for (int i = 0; i < 5; i++)
{
    float cpu = getCPUCOunter();

    float memory = getRamCounter();

    ulong TotalMemory = new Microsoft.VisualBasic.Devices.ComputerInfo().TotalPhysicalMemory;
    TotalMemory = TotalMemory / 1024000;

     float PhysicalMemory = (TotalMemory - memory) * 100 / TotalMemory;

     msg += "CPU Utilization =  " + Math.Round(cpu) + "%\r\n" + Environment.NewLine + " \nPhysical Memory Utilization " + Math.Round(PhysicalMemory) + "%" + Environment.NewLine + " at " + DateTime.Now.ToString("HH:mm:ss tt") + Environment.Newline;
     Thread.Sleep(10000);
}

SendMail("PROD Server CPU and Physical Memory Utalization", msg)