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此函数用于为计算结果分配名称。然后,变量名可用于存储中间计算、值或在LET()函数的大括号中定义名称。要使用此函数,必须定义与之关联的名称和值对,以及使用所有这些名称和值的计算。
通过使用这个函数,用户不必记住一个特定的范围或单元格引用引用了什么,或者您的计算应该做什么,甚至可以重新复制粘贴相同的表达式。
LET (name1, name_value1, calculation_or_name2, [name_value2, calculation_or_name3...])
这个函数有以下参数:
参数 | 描述 |
---|---|
name | 要分配的名字。一定要以字母开头。 |
name_value1 | 分配给 name1 的值。 |
calculation_or_name2 | 您可以定义以下内容之一。 |
name_value2 | (可选)分配给 calculation_or_name2 的值或计算. |
calculation_or_name3 | (可选) 您可以定义以下内容之一. |
返回不同的数据类型。
最后一个参数必须始终是返回结果的计算。.
下面的示例代码展示了LET函数的基本用法。
var formula = '=LET(x,2,x+3)';
sheet1.setValue(2, 0, 'Pair varible');
sheet1.setValue(2, 1, formula);
sheet1.setValue(3, 0, 'Result');
sheet1.setFormula(3, 1, formula);
下面的示例代码展示了LET函数中LET本地变量和自定义名称的用法。
sheet1.addCustomName('user', '="Michael"');
var formula = '=LET(user,"Ivy","The actual user is: "&user)';
sheet1.setValue(2, 0, 'Always use LET local variable first');
sheet1.setValue(2, 1, formula);
sheet1.setValue(3, 0, 'Result');
sheet1.setFormula(3, 1, formula);
// 如果本地变量不可用,请使用自定义名称
var formula = '=LET(user,user,"The actual user is: "&user)';
sheet1.setValue(5, 0, 'Use custom name if local variable is not available');
sheet1.setValue(5, 1, formula);
sheet1.setValue(6, 0, 'Result');
sheet1.setFormula(6, 1, formula);