Write,writeline,WriteString函数(来自网络,全是粘贴,收集自己用)

Console类中的Write和WriteLine函数都是用来在控制台上输出字符串或含有变量的复合文本。其中，WriteLine函数用于在控制台上输出一行文本，并自动换行；而Write函数输出后不会自动换行。

对于Write和WriteLine函数来说，都可以将各种基本类型的值、对象直接输出到控制台中，且WriteLine函数可以不带参数，直接换行。

【例Ex_Write】控制台输出
#include "stdafx.h"
using namespace System;
int main(array<System::String ^> ^args)
{
 int n;
     Console::Write(L"请输入杨辉三角的阶数：");
 n = Int32::Parse( Console::ReadLine() );
 array<int>^ curLineArr = nullptr;
 for (int i=0; i<n; i++ )
 {
  array<int>^ nextLineArr = gcnew array<int>( i+1 );
  if ( i<=1 ){
   for ( int j=0; j<i+1; j++ )
    nextLineArr[j] = 1;
  } else {
   if ( curLineArr->Length > 1 ){
    nextLineArr[0] = 1;
    for ( int k=0; k<curLineArr->Length-1; k++ )
    {
     nextLineArr[k+1] = curLineArr[k] + curLineArr[k+1];
    }
    nextLineArr[nextLineArr->Length - 1] = 1;
   }
  }
  // 计算输出该行数据前面的空格
  String^ strSpace = "   ";    // 3个空格
  Console::Write( strSpace->PadLeft( ( n - i ) * 3 ) );   
  // 输出该行数据
  for each ( int data in nextLineArr )
   Console::Write(L"{0, 6}", data );
  Console::WriteLine();     // 直接换行
  curLineArr = nextLineArr;
 }
 return 0;
}

编译运行，输入10并按【Enter】键，结果如下：

请输入杨辉三角的阶数：10
                                   1
                                1     1
                             1     2     1
                          1     3     3     1
                       1     4     6     4     1
                    1     5    10    10     5     1
                 1     6    15    20    15     6     1
              1     7    21    35    35    21     7     1
           1     8    28    56    70    56    28     8     1
        1     9    36    84   126   126    84    36     9     1

CStdioFile::WriteString 

Visual Studio 2005

Other Versions

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Writes data from a buffer to the file associated with the CStdioFile object.

virtual void WriteString(   LPCTSTR lpsz );

Parameters

lpsz

Specifies a pointer to a buffer containing a null-terminated text string.

Remarks

---

The terminating null character ('\0') is not written to the file. Any newline character in lpsz is written to the file as a carriage return–linefeed pair.

WriteString throws an exception in response to several conditions, including the disk-full condition.

This is a text-oriented write function available to CStdioFile and its descendents, and to CArchive. CFile::Write is also available, but rather than terminating on a null character, it writes the requested number of bytes to the file.

Example

---

// example for CStdioFile::WriteStringextern CStdioFile f;char buf[] = "test string";f.WriteString( buf );

CFile::Write 

Visual Studio 2005

Other Versions

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Writes data from a buffer to the file associated with the CFile object.

virtual void Write(   const void* lpBuf,   UINT nCount );

Parameters

lpBuf

A pointer to the user-supplied buffer that contains the data to be written to the file.

nCount

The number of bytes to be transferred from the buffer. For text-mode files, carriage return–linefeed pairs are counted as single characters.

Remarks

---

Write throws an exception in response to several conditions, including the disk-full condition.

Example

---

//example for CFile::Writeextern CFile cfile;char pbuf[100];cfile.Write( pbuf, 100 );