nPdpdds^2=g00dt^2+gk1dx^kdx^1（kl=123）;g00=e^（r）g11=e^（r）g22=-r^2;g33=-r^2sin^2gk1=0（k1）n=1Tolnn=2PPrn=1n=2dpdn=3uPr0s=4.5Ruv-12guvR=8Gc^4Tuv232030N-S（）