javascript基础05 1.变量的作用域 变量既可以是全局,也可以是局部的. 全局变量:可以在脚本中的任何位置被引用,一旦你在某个脚本里声明了全局变量,你就可以 在这个脚本的任何位置(包括函数内部)引用它,全局变量的作用域是整个脚本; 局部变量:只存在于对它做出声明的函数内部,在函数的外部无法相用它,局部变量的作用域 仅限于函数内部; function square(num){ var total; total = num * num; return total; } var total…
What is WPF? WPF (Windows Presentation foundation) is a graphical subsystem for displaying user interfaces, documents, images, movies etc in windows application. What is the need of WPF when we had windows forms? Hide Copy Code Remember: - ABCDEFG…
Table 10.2 Keywords and Reserved Words in MySQL 5.7 ACCESSIBLE (R) ACCOUNT[a] ACTION ADD (R) AFTER AGAINST AGGREGATE ALGORITHM ALL (R) ALTER (R) ALWAYS[b] ANALYSE ANALYZE (R) AND (R) ANY AS (R) ASC (R) ASCII ASENSITIVE (R) AT AUTOEXTEND_SIZE AUTO_INC…
/** * Created by han on 2016/1/28. */ import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.hbase.*; import org.apache.hadoop.hbase.client.*; import org.apache.hadoop.hbase.filter.CompareFilter.CompareOp; import org.apache.hadoop.hbas…