A long time ago, there was a god in the heavens named Pu'an, who had a very good craft. One year, he came down to the human world to teach two apprentices, one named Zhang Ban and the other named Lu Ban. Later, a large piece collapsed on the northwest corner of the sky, and the Jade Emperor sent someone to invite Pu'an to repair the sky.
Zhang Ban and Lu Ban could no longer learn their craft, so they had to take the two people who helped them sweep the floor and cook to work for others. Sweeping the floor every day, wiping every day, and later became a painter. He went to the river to fetch water, a moment to the mountain to cut firewood, a moment to go to the river to collect rice, a moment to go to the stove to burn the fire, a moment on the mountain, a moment under the mountain, a moment at the water's edge, a moment at the fire, a moment wet, a moment dry, so the cook's shoes are not worn, and it will not take a few days to make a new pair of shoes.
What to do? The cookers were attentive. One day he saw Lu Ban nailing the box, and he thought: He nailed the box with a wooden board, and I nailed my shoes with a wooden board, so that it would be more worn than cloth shoes. Thinking like this, he also nailed a pair of wooden shoes according to the appearance of shoes. But the planks are smooth, and the soles are made without teeth. Once, a cook went to the river to pan for rice, panning for rice, and when he was not careful, a shoe slipped into the river. As soon as he saw that the wooden shoe was still floating and floating on the surface of the water, and had not sunk, he wanted to catch it. He couldn't play with water, so he had to find a bamboo pole to pluck, but the bamboo pole was short and could not be dialed, so he threw it with the stone, and the stone set off a small wave, and the wooden shoes drifted with the waves, that is, they did not dock. He threw a stone again, and a stone was just thrown on the wooden shoe, but the shoe still did not sink, and suddenly, his heart lit up, and he thought: If you nail a large wooden shoe, you can sit on a person! On this day, someone asked Lu Ban to help them build a bridge in the village, and Lu Ban went to the river to see the terrain. The river is wide and the water is deep, and it is impossible to build a bridge pier, what to do? Leave a clever Luban in a straight circle around the room.
When the cooked rice was cooked, in the second half of the day, luban did not see Lu ban come to eat the day meal, so he went to call him, and Lu Ban said that he could not eat.
The cook asked him what was so worried that he couldn't even eat, and Lu Ban told him about the bridge and told him not to build the bridge.
Lu Ban listened strangely, without building a bridge, how can people cross the river? The cook told the story of Taomi's lost shoes. He helped Lu Ban come up with an idea: find a way to nail a large shoe with a wooden plank, and people can sit across the river. When Lu Ban heard this, he jumped up with joy, ate a full meal and then dried up
Make it a try, and sure enough, it can fit people. Since then, there have been boats on the water.