在实际写程序中,经常要对变量类型进行判断,除了用type(变量)这种方法外,还可以用isinstance方法判断: #!/usr/bin/env pythona = 1b = [1,2,3,4]c = (1,2,3,4)d = {‘a‘:1,‘b‘:2,‘c‘:3}e = "abc"if isinstance(a,int): print "a is int"else: print "a is not int"if isinstance
public class TimestampLength { public static void main(String[] args) { System.out.println(java.nio.charset.Charset.defaultCharset().toString()); System.out.println("学java".getBytes().length); System.out.println("2018-11-27 02:24:00.0000000
Controller:class MemberController extends Controller { public function actionmember_list() { $this->setauth(); $sql = " SELECT * FROM vcos_member WHERE 1=1 "; $count_sql = "SELECT count(*) AS count FROM vcos_memb