vbgoto,[InstallScript Language Reference]goto

The goto keyword is used to branch directly to the statement immediately following a specified label. In the following code fragment, the goto statement causes execution to continue with the AskText statement.
Name:
AskText("Company name:", "", szSrc);

if (szSrc = "") then
MessageBox("Please enter the company name.", SEVERE);
goto Name;
endif;

A goto statement in the main program must specify a label that has been declared in the main program. A goto statement in a function must specify a label that has been declared in that function.
InstallScript supports a special form of the if statement that can be used _disibledevent=> if condition goto labelname;

This special structure is has the following features:

• The condition must be followed by a goto statement.
  
• The keyword then is not used.
  
• The keyword endif is not used.

In the following example, the user will be prompted to enter a company name as long as szSrc is a null string (“”).
Name:
AskText("Company name:", "", szSrc);
if (szSrc = "") goto Name;

延伸阅读

• 2009-10-6-- javagoto:Java中的"goto"实现
• 2008-12-13-- goto语句:有关GoTo语句的争论
• 2008-9-25-- goto语句:灵活使用GOTO语句
• 2009-2-12-- goto语句:goto语句学习