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浠ヤ笅鏄疌OleVariant鐨勫父鐢ㄧ敤娉曪細

1. 鍒涘缓COleVariant瀵硅薄骞跺垵濮嬪寲锛?/li>

COleVariant var;

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COleVariant var(value);

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2. 璁剧疆COleVariant瀵硅薄鐨勫€硷細

var = value;

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var.ChangeType(VT_XXX, &value);

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3. 鑾峰彇COleVariant瀵硅薄鐨勫€硷細

var.xxx;

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4. 鍒ゆ柇COleVariant瀵硅薄鐨勭被鍨嬶細

var.vt;

鍙互鐩存帴璁块棶vt鎴愬憳鍙橀噺鑾峰彇COleVariant瀵硅薄鐨勬暟鎹被鍨嬶紝涔熷彲浠ヤ娇鐢–OleVariant鐨処sXXX()鍑芥暟鍒ゆ柇鍏蜂綋鐨勭被鍨嬶紝渚嬪IsNumeric()鍙互鍒ゆ柇COleVariant瀵硅薄鏄惁鏄暟鍊肩被鍨嬨€?/p>

浠ヤ笂鏄疌OleVariant鐨勫熀鏈娇鐢ㄦ柟娉曪紝鍙互鏍规嵁瀹為檯闇€瑕佷娇鐢–OleVariant鐨勫叾浠栨垚鍛樺嚱鏁版潵澶勭悊涓嶅悓绫诲瀷鐨勬暟鎹€?/p>