| 1. | Statement , all undeclared variables are of
语句，则所有未声明的变量均为 |
| 2. | Every undeclared variable defaults to the
，则每个未声明的变量默认为 |
| 3. | Attempting to use an undeclared variable causes an error at compile time
试图使用未声明的变量将导致编译时错误。 |
| 4. | Undeclared variables and variables declared without a data type are assigned the
将为未声明的变量和虽声明但无数据类型的变量分配 |
| 5. | Furthermore , undeclared variables have global scope , which can cause additional confusion
而且，未声明的变量具有全局范围，还会引起其他混淆。 |
| 6. | If you attempt to use an undeclared variable name , an error occurs at compile time
语句显式声明所有变量。试图使用未声明的变量名将发生编译时错误。 |
| 7. | In visual basic , you cannot declare implicit variables in the expression evaluator , but if you use an undeclared variable in the visual basic expression evaluator , an implicit variable is created automatically
在visual basic中，无法在表达式计算器中声明隐式变量，但是如果在visual basic表达式计算器中使用未声明的变量，将自动创建一个隐式变量。 |
