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标题:腾讯云云产品新购特惠,五折上云!
地址:https://cloud.tencent.com/act/first_purchase?utm_source=portal&utm_medium=cdb&utm_campaign=firstpurchase&utm_term=0110
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查看各种令牌实现(例如这里和这里)的源代码,它们具有以下API:
// presume can only be "called" by owner.
Transfer(address to, number amount)
// sender (exchange) must be authorised by owner
Transfer(address from, address to, number value) {
require(balanceOf[from] >= value);
balanceOf[from] -= value;
b