Customized water outlet setting method and customized water outlet method for quantitative faucet and quantitative faucet

A quantitative faucet, comprising:

• a water outlet setting switch,
• a water outlet control switch,
• a flow selection switch, and
• a program control module, wherein:
• the flow selection switch comprises a quantitative ring,
• the quantitative ring comprises a plurality of quantitative water outlet gear positions,
• the program control module comprises a water outlet valve, a flowmeter, and a control chip,
• the control chip is connected with the water outlet setting switch to receive a first touch/press signal of the water outlet setting switch so as to enter a customized setting mode, so that one of the plurality of quantitative water outlet gear positions selected by the flow selection switch is configured to be set as a customized water outlet gear position and a water outlet capacity corresponding to the one of the plurality of quantitative water outlet gear positions is configured to be modified into a customized water outlet capacity,
• the water outlet control switch is connected with the control chip, and
• after the flow selection switch is configured to select the customized water outlet gear position, the control chip is configured to control the water outlet valve to be opened after receiving a second touch/press signal of the water outlet control switch, so that when the flowmeter senses that a quantity of water flowing therethrough has reached the customized water outlet capacity corresponding to the customized water outlet gear position, the control chip is configured to control the water outlet valve to be closed.