Multi-functional curtain, camping tarp and tent

A multi-functional curtain, comprising:

• an flysheet, comprising a body portion and two outer tent curtain portions arranged symmetrically, wherein the body portion and the two outer tent curtain portions are connected to each other;
• and
• an inner tent, comprising a tent bottom and an inner tent curtain portion, wherein a tent curtain rim of the inner tent curtain portion is respectively connected to the tent bottom and the body portion;
• the inner tent is arranged in the body portion, and the tent bottom has a first inner tent rim detachably connected to the body portion, so that the tent bottom, the inner tent curtain portion and the body portion enclose an inner cavity after the first inner tent rim being separated from the body portion;
• wherein the flysheet is formed with a plurality of corners, each of the corners has two outer tent rims extending at an included angle to another adjacent corner, and each corner is further provided with an anchor point member for connecting a guy line, a tent stake or a support stem;
• at least one of the corners is a connection corner of the body portion with two of the outer tent curtain portions, and a first inner tent rim of the tent bottom is detachably connected with the connection corner.