错误：方法参数必须括在括号中 [英] error: method arguments must be enclosed in parentheses

问题描述

我有阅读所有行的代码

    while  sr.Peek（）> =  0  
 line = sr.ReadLine（）
 循环 

但我在第一行收到错误，说：方法参数必须括在括号中

解决方案

试试这个

  string  fileText = < span class =code-keyword> string  .Empty; 
 使用（StreamReader sr =  new  StreamReader（   YoufilePathHere））
 {
 fileText = sr.ReadToEnd（）;  //  它会读取文件的所有文字。 
} 

VB



< pre lang =vb> Dim fileText As String = 字符串 .Empty
使用 sr 正如 新 StreamReader（ YoufilePathHere ）
' 它将读取文件的所有文本。
fileText = sr.ReadToEnd（）
结束 使用

问题不在你显示的代码片段中：这是完全有效的，并且编译没有问题。



在此之前查看代码，很可能是你忘记了某些东西，或者在某个地方留下了虚假的下划线。尝试双击实际的错误消息 - 它可能会带你到真正的问题。



如果没有，我们需要一个更大的代码片段来帮助你！

我是编程的新手，但我认为以下几行正在产生问题。



sr.Peek（）> = 0



因为编译器正在考虑> = 0作为sr.Peek（）的参数



所以得到函数的结果在某个变量或类似的东西，并且dn把比较运算符放在那个。





问候。



：）

hi, i am having this code for reading all lines

Do While sr.Peek() >= 0
    line = sr.ReadLine() 
Loop 

but i am getting an error on first line which says: method arguments must be enclosed in parentheses

解决方案

Try this

string fileText = string.Empty;
                using (StreamReader sr = new StreamReader("YoufilePathHere"))
                {
                    fileText = sr.ReadToEnd();      //it will read all text of file.
                }

in VB

Dim fileText As String = String.Empty
Using sr As New StreamReader("YoufilePathHere")
		'it will read all text of file.
	fileText = sr.ReadToEnd()
End Using

The problem is not in the code fragment you show: That is perfectly valid and will compile without problems.

Look at the code immediately before this, It is likely that you have forgotten something, or left a spurious underline somewhere. Try double clicking on the actual error message - it may take you to the line with the real problem.

If not, we would need a larger code fragment to help!

I am new to programming , but I think the following line is creating problem.

sr.Peek() >= 0

as compiler is considering >=0 as argument of "sr.Peek()"

so get the result of function in some variable or like something, and dn put comparison operator on that.


Regards.

:)

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