WMLScript trim() º¯Êý

trim() º¯Êý·µ»ØÈ¥µô¿ªÍ·ºÍ½áβ¿Õ¸ñºóµÄ×Ö·û´®¡£

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n = String.trim(string)
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n ´Óº¯Êý·µ»ØµÄ×Ö·û´®¡£
string Ò»¸ö×Ö·û´®¡£

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var a = String.trim(" Visit W3School ");

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a = "Visit W3School"
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