if(____?___($_FILES['upimage']['tmp_name'])){ //判断是否为上传文件$name =$_FILES['upimage']["name"]; //接收上传文件的文件名$type = $_FILES['upimage']["type"]; //接收上传文件的MIME类型$size = $_FILES['upimage']["size"]; //接收上传文件的大小$tmp_name =$_FILES['upimage']["tmp_name"]; //接收上传文件的临时存放目录、文件名$error =$_FILES['upimage']["error"]; //接收上传文件的错误返回值}

限制上传文件类型,需要对$_FILES[“file”][“______”]进行判断

限制上传文件大小,需要对$_FILES[“file”][“______”]进行判断

下面属性中，（ ）是保存上传文件名为photo的文件类型。 A: $_FILES["photo"]["name"] B: $_FILES["photo"]["size"] C: $_FILES["photo"]["tmp_name"] D: $_FILES["photo"]["type"]

Which one of the following is correct about data file and C language?? Files consist of binary data sequence and C language can only read and write binary files.|Files consist of ASCII character sequence and C language can only read and write text files.|Files consist of records sequence and can be categorized into binary files and text files by the storage form of the data.|Files consist of data streams and can be categorized into binary files and text files by the storage form of the data.

判断文件是否上传文件应该用 A: A、is_uploaded_file($_FILES['upimage']['name']) B: B、is_uploaded_file($_FILES['upimage']['type']) C: C、is_uploaded_file($_FILES['upimage']['tmp_name']) D: D、is_uploaded_file($_FILES['upimage']['size'])

通过openFileOutput方法写入的文件内容保存在以下哪个文件夹下 A: /data/data/packagename/files/ B: /sdcard/data/packagename/files/ C: /sdcard/packagename/files/ D: /mnt/sdcard/packagename/files/

ISIS使用了下列的文件类型： 设计文件（Design Files） 、部分文件（Section Files）、 模块文件（Module Files）、 库文件（Library Files） 。设计包含一个电路的所有信息，文件扩展名为“（ ）”

以下正确的语句是＿＿＿＿。 A: OpenFileDialog1.Filter=All Files|*.*|Pictures(*.Bmp)|*.Bmp B: OpenFileDialog1.Filter="All Files"|"*.*"|"Pictures(*.Bmp)"|"*.Bmp" C: OpenFileDialog1.Filter="All Files|*.*|Pictures(*.Bmp)|*.Bmp" D: OpenFileDialog1.Filter={All Files|*.*|Pictures(*.Bmp)|*.Bmp}

以下正确的语句是____。 A: CommonDialog1.Filter= All Files|*.*|Pictures(*.Bmp)|*.Bmp B: CommonDialog1.Filter= "All Files"|"*.*"|"Pictures(*.Bmp) "|"*.Bmp" C: CommonDialog1.Filter= "All Files|*.*|Pictures(*.Bmp)|*.Bmp" D: CommonDialog1.Filter= {All Files|*.*|Pictures(*.Bmp)|*.Bmp}