javascript怎么清空原来的数组在重新赋值??(数组的长度不一定)var arrayModule = new Array();
arrayModule =[["01","费用报销"],["05","工程付款"],["10","燃料付款"],["15","物资付款"],["20","基建付款"],["99","其他款项"]];
arrayModule =[["01","费用报销"],["05","工程付款"],["10","燃料付款"],["15","物资付款"],["20","基建付款"],["99","其他款项"]];
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