82 lines
1.7 KiB
Vue
82 lines
1.7 KiB
Vue
<template>
|
|
<view>
|
|
<text>{{formProps.placeholder || '计算结果：'}}</text>
|
|
<text>{{_value}}</text>
|
|
</view>
|
|
</template>
|
|
|
|
<script setup>
|
|
import { ref, computed, watch } from 'vue'
|
|
|
|
const props = defineProps({
|
|
formProps: {
|
|
type: Object,
|
|
default: () => {
|
|
return {}
|
|
}
|
|
},
|
|
formData: {
|
|
type: Object,
|
|
default: () => {
|
|
return {}
|
|
}
|
|
},
|
|
index: Number,
|
|
modelValue: Number,
|
|
readonly: Boolean
|
|
})
|
|
|
|
const _value = computed({
|
|
get() {
|
|
return props.modelValue
|
|
},
|
|
set(val) {
|
|
emits('update:modelValue', val)
|
|
}
|
|
})
|
|
|
|
const execute = ref(null)
|
|
|
|
const explainStr = computed(() => {
|
|
let explain = ''
|
|
execute.value = null
|
|
props.formProps.explain.forEach(item => {
|
|
const v = String(item.symbol || item)
|
|
if (/[0-9.]$/.test(v)) {
|
|
explain += v
|
|
} else {
|
|
explain += v + ' '
|
|
}
|
|
})
|
|
return explain
|
|
})
|
|
|
|
const emits = defineEmits(['update:modelValue'])
|
|
|
|
function doExc() {
|
|
try {
|
|
if (!(execute.value instanceof Function)) {
|
|
if (props.formProps.isPlus) {
|
|
const jsExplain = props.formProps.jsCode.replace(/\[\?\]/g, m => '[$_index]')
|
|
execute.value = new Function('formData',
|
|
`let $_index = ${props.index > 0 ? props.index - 1 : 0}; ${jsExplain} return execute(formData)`
|
|
)
|
|
} else {
|
|
execute.value = new Function('formData', `return ${explainStr.value}`)
|
|
}
|
|
}
|
|
let result = execute.value(props.formData)
|
|
_value.value = props.formProps.precision > 0 ? (Number.isNaN(result) ? NaN : parseFloat(result.toFixed(this
|
|
.precision))) : parseInt(result)
|
|
} catch (e) {
|
|
_value.value = NaN
|
|
}
|
|
}
|
|
|
|
watch(() => props.formData, () => {
|
|
doExc()
|
|
}, { deep: true })
|
|
</script>
|
|
|
|
<style>
|
|
</style> |