this example writes a string to a text file using the writeline method of the streamwriter class. example dim file as new system.io.streamwriter("c:/test.txt") file.writeline("here is the first line.") file.close() compiling the code this example requires: a reference to system namespace. robust programming the following conditions may cause an exception: the file exists and is read-only (ioexception class). the disk is full (ioexception class). the pathname is too long (pathtoolongexception class). security this example creates a new file, if the file does not already exist. if an application needs to create a file, that application needs create access for the folder (see access control). if the file already exists, the application needs only write access, a lesser privilege. where possible, it is more secure to create the file during deployment, and only grant read access to a single file, rather than create access for a folder. ，歡迎訪問(wèn)網(wǎng)頁(yè)設(shè)計(jì)愛(ài)好者web開(kāi)發(fā)。
