打开文件进行行编辑c语言,C中如何以只读方式打开文件打开后不能进行编辑爱问知识人...

fopen( "data", "r" );这样就行了。下面是一个完整代码的例子。

(取自微软MSDN)

#include FILE *stream, *stream2;void main( void ){ ? int numclosed; ? /* Open for read (will fail if file "data" does not exist) */ ? if( (stream ?&＃61; fopen( "data", "r" )) &＃61;&＃61; NULL ) ? ? ?printf( "The file &＃39;data&＃39; was not opened

" ); ? else ? ? ?printf( "The file &＃39;data&＃39; was opened

" ); ? /* Open for write */ ? if( (stream2 &＃61; fopen( "data2", "w " )) &＃61;&＃61; NULL ) ? ? ?printf( "The file &＃39;data2&＃39; was not opened

" ); ? else ? ? ?printf( "The file &＃39;data2&＃39; was opened

" ); ? /* Close stream */ ? if( fclose( stream ) ) ? ? ?printf( "The file &＃39;data&＃39; was not closed

" ); ? /* All other files are closed: */ ? numclosed &＃61; _fcloseall( ); ? printf( "Number of files closed by _fcloseall: %u

", numclosed );}

Output

The file &＃39;data&＃39; was openedThe file &＃39;data2&＃39; was openedNumber of files closed by _fcloseall: 1。

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