Drum washing machine

A drum washing machine, comprising:

• an outer drum, configured in a shell;
• a drum, configured in the outer drum and operative to rotate by using a horizontal axis or an inclination axis inclining relative to a horizontal direction as a center;
• a rotating body, configured in the drum and provided with a protruding part in contact with washings on a surface of the rotating body;
• a driving part, operative to operate in a first driving form and a second driving form, wherein the first driving form is a driving form in which the drum and the rotating body are operative to integrally rotate at a same rotating speed or the drum is operative to rotate and the rotating body is operative to be in a free rotation state, and the second driving form is a driving form in which the drum and the rotating body are operative to rotate at different rotating speeds;
• a heater, configured to heat water stored in the outer drum for washing;
• and
• a control part, which is configured to at least performs washing operation of a first washing mode and a second washing mode, wherein
• the control part is configured to:
• control the driving part to operate in the first driving form and control the heater to operate, in a washing process of the first washing mode;
• and
• control the driving part to operate in the second driving form, and control the heater to operate in such a manner that heat applied to the water is reduced compared with the first washing mode or not control the heater to operate, in a washing process of the second washing mode;
• wherein the drum washing machine further comprises a temperature sensor configured to detect a temperature of the water stored in the outer drum and heated by the heater.