WMLScript maxFloat() º¯Êý

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n = Float.maxFloat()
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n ¸Ãº¯Êý·µ»ØµÄ×î´óµÄ¿ÉÄܵĸ¡µãÊý(3.40282347E+38)¡£

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var a = Float.maxFloat();

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a = 3.40282347E+38
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