WMLScript prompt() º¯Êý

prompt() º¯ÊýÏÔʾһÌõÏûÏ¢£¬²¢µÈ´ýÊäÈë¡£µÚ¶þ¸ö²ÎÊýÊÇĬÈϵÄÊäÈëÖµ£¬Èç¹ûÓû§Ã»ÓÐÊäÈëÖµ£¬¾Í»á·µ»ØÕâ¸öÖµ¡£¸Ãº¯Êý·µ»ØÓû§ÊäÈëµÄÖµ»òĬÈÏÖµ¡£

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n = Dialogs.prompt(message, defaultinput)
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n ´Ó¸Ãº¯Êý·µ»ØµÄ×Ö·û´®¡£
message °üº¬ÏûÏ¢£¨ÎÊÌ⣩µÄ×Ö·û´®¡£
defaultinput °üº¬Ä¬ÈÏÊäÈ루»Ø´ð£©µÄ×Ö·û´®¡£

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var a = Dialogs.prompt("Enter a number:","3");

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a = "5" (if the user entered the value 5)
a = "3" (if the user did not enter a value)
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