wmxuanclac (npm): npm i wmxuanclac #usage     const clac = require("wmxuanclac")     const reasult = clac.add(1,2)     <!-- const reasult = clac.sub(1,2) -->     <!-- const reasult = clac.mul(1,2) -->     <!-- const reasult = clac.div(1,2) -->
Keywords: clac