1、lc是信用证的意思,英文2113全5261称为:letter of credit 信用证,是指银行根据进口人(买4102方)的1653请求,开给出口人(卖方)的一种保证承担支付货款责任的书面凭证。在信用证内,银行授权出口人在符合信用证所规定的条件下,以该行或其指定的银行为付款人,开具不得超过规定金额的...
向下取整2113 例如 floor(3.8) ans=3 help floor floor round towards minus infinity. floor(x)rounds the elements of x to the nearest integers towards minus infinity. see also round,ceil,fix. overloaded methods...