代码
/**
* 大数字转换，将大额数字转换为万、千万、亿等
* @param value 数字值
*/
export function bigNumberTransform (value) {
const newValue = ['', '', '']
let fr = 1000
let num = 3
let text1 = ''
let fm = 1
while (value / fr >= 1) {
fr *= 10
num += 1
// console.log('数字', value / fr, 'num:', num)
}
if (num <= 4) { // 千
newValue[0] = parseInt(value / 1000) + ''
newValue[1] = '千'
} else if (num <= 8) { // 万
text1 = parseInt(num - 4) / 3 > 1 ? '千万' : '万'
// tslint:disable-next-line:no-shadowed-variable
fm = text1 === '万' ? 10000 : 10000000
if (value % fm === 0) {
newValue[0] = parseInt(value / fm) + ''
} else {
newValue[0] = parseFloat(value / fm).toFixed(2) + ''
}
newValue[1] = text1
} else if (num <= 16) { // 亿
text1 = (num - 8) / 3 > 1 ? '千亿' : '亿'
text1 = (num - 8) / 4 > 1 ? '万亿' : text1
text1 = (num - 8) / 7 > 1 ? '千万亿' : text1
// tslint:disable-next-line:no-shadowed-variable
fm = 1
if (text1 === '亿') {
fm = 100000000
} else if (text1 === '千亿') {
fm = 100000000000
} else if (text1 === '万亿') {
fm = 1000000000000
} else if (text1 === '千万亿') {
fm = 1000000000000000
}
if (value % fm === 0) {
newValue[0] = parseInt(value / fm) + ''
} else {
newValue[0] = parseFloat(value / fm).toFixed(2) + ''
}
newValue[1] = text1
}
if (value < 1000) {
newValue[0] = value + ''
newValue[1] = ''
}
return newValue.join('')
}