function startLoading () {
    uni.showLoading({
    	mask:true
    })
}
// 关闭loading事件
function endLoading () {
   uni.hideLoading()
}

// 默认状态
let needLoadingRequestCount = 0

// 开启loading
export function showFullScreenLoading() {
    if (needLoadingRequestCount === 0) {
        startLoading()
    }
    needLoadingRequestCount++
}
// 取消loading
export function tryHideFullScreenLoading() {
    if (needLoadingRequestCount <= 0) return
        needLoadingRequestCount--
    if (needLoadingRequestCount === 0) {
        endLoading()
    }
}