摘要：
#If...Then...#Else Directives Conditionally compiles selected blocks of Visual Basic code.#If expression Then statements [ #ElseIf expression Then [ statements ] ... #ElseIf expression Then ... 阅读全文
摘要：
Option Strict on Visual Basic .NET generally allows implicit conversions of any data type to any other data type. Data loss can occur when the value of one data type is converted to a data type with ... 阅读全文