when i append record including chinese get a error says TypeError: "value" argument is out of bounds

[JesseWeb]

let fieldDescriptors = [
        {
            name: 'C_ID',
            type: 'C',
            size: 16,
        },
        {
            name: 'C_HM',
            type: 'C',
            size: 64,
        }, {
            name: 'C_DZ',
            type: 'C',
            size: 64,
        },
        {
            name: 'N_Y',
            type: 'N',
            size: 4,
        },
        {
            name: 'N_M',
            type: 'N',
            size: 4,
        },
        {
            name: 'D_CB',
            type: 'D',
            size: 8,
        },
        {
            name: 'N_BCCM',
            type: 'N',
            size: 8,
        },
        {
            name: 'N_SCCM',
            type: 'N',
            size: 8,
        },
        {
            name: 'I_CBBZ',
            type: 'N',
            size: 1,
        }
    ]

{
                C_ID: '',
                C_HM: item.customerNumber,
                C_DZ: String("测试"),
                N_Y: Number(dateformat(new Date(item.logDateTime), 'yyyy')),
                N_M: Number(dateformat(new Date(item.logDateTime), 'mm')),
                D_CB: new Date(item.logDateTime),
                N_BCCM: Number((item.number/1000).toFixed()) || 0,
                N_SCCM: 0,
                I_CBBZ: 1
            }

[JesseWeb]

this problem is resolved , by using
unescape(encodeURIComponent(ChineseStr))