「GOTO」命令有什麼問題？

Question

@echo off 
title Variables 
set age= default 
set name = defualt 
set teaornah = deafault 
set transport = deafault 
echo How old are you, my fine friend? 
set /p age= 
echo So, you are %age% years old? Interesting! 
pause 
echo And what might your namesake be, old fellow? 
set /p name= 
echo Oh that's right! It's %name%! I'm am absolutly HORRID with names! Dear me! 
pause 
echo so, %name%, would you like to go to get some tea? 
set /p teaornah= 
if %teaornah% == yes goto yes 
if %teaornah% == no goto no 
:yes 
echo very well then! 
echo Would you like to take a bus or car? 
set /p transport= 
if transport == car goto car 

if transport == bus goto bus 
:car 
echo we seem to be caught up in a traffic jam. 
echo how awful. 
echo fine weather, huh? 
echo you're not very talkative. 
echo goodbye. 
pause 
exit 

:bus 
echo You are victorious, %name%! 
pause 
exit 
:no 
echo Oh. How bad. I think I shall kill you now. 
pause 
exit 

這是我的代碼。我是一名初學者批量用戶，剛學過goto命令，但是當在set/p transport =之後輸入「bus」時，它不會去：bus去：car。我想要一些幫助，因爲我發現與其他程序有類似的問題。 goto：沒有作品，goto也沒有：是的，但沒有其他goto的作品。請幫忙！

Answer 1

這兩組線之間有什麼區別？

if %teaornah% == yes goto yes 
if %teaornah% == no goto no 

if transport == car goto car 
if transport == bus goto bus 

實際上，最後兩條線都不在任何地方。您的代碼會檢查單詞transport是否等於單詞car並確定它不是，因此它會繼續到下一行。然後它檢查單詞transport是否等於單詞bus並決定它不是，所以它繼續到car標籤的開始的下一行。

你的代碼的一些其他的想法：

批次是在SET聲明空格敏感。 SET FLAG = N設置一個名爲「FLAG 空間」變量的「空間 N」

的set "var=value"語法確保在批次線任何尾隨空格不包含在分配給所述var值的值。

if /i "%var%"=="value"對包含分隔符（例如空格）的變量/值執行比較'/ i'使比較不區分大小寫。