Lending is the lending behavior of one party to the other. The receipt should be signed by both the borrower and the borrower, and the loan amount should also indicate the loan period, interest target, repayment period and even the borrower's mortgage. Partnership investment is different from lending. Two or more people jointly invest in a project or industry, and it is more important to determine the investment ratio and the rights and obligations of investors. So there is an essential difference between borrowing and investing.