读写文件的模式:
复制代码 代码如下:
r - 读取模式w - 写入模式(覆盖现有内容)
a - 附加模式(附加在现有内容之后)
b - 二进制模式
r+ - 读取更新模式(现有数据保留)
w+ - 写入更新模式(现有数据擦除)
a+ - 附加更新模式(现有数据保留,只在文件末尾附加)
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do --read data from file function readFile() local fileHandle = assert (io.open( "test.txt" , "r" ), "not the file" ); if fileHandle then local outData = fileHandle:read( "*all" ); print(outData); else print( "false" ); end fileHandle:close(errorInfo); end --write data to the file function writeFile(dataBuffer) local writeHandle = assert (io.open( "write.txt" , "a+" ), "not the file" ); if writeHandle then writeHandle:write(dataBuffer); print( "true" ); else print( "false" ); end writeHandle:close(); end local inputData = 0; repeat inputData = io.read(); --write the data from io writeFile(inputData); until inputData == '#' end |