Under Han Shan's shout, the gunners of this artillery group hurriedly pushed forward the retreating guns that shook after firing, and after completing the reset, the gunners began to clean the gun chamber with a cannon brush!

At the same time, Han Shan also instructed the loader to slightly increase the weight of the cannon, and by the time the shell had been reloaded and aiming, about a minute and a half had passed.

This time is actually very long for the rate of fire of an artillery, and a well-trained artillery crew can fire two or even three shells a minute in the case of a burst rate of fire, of course, the fact that the burst rate of fire is a good job in the war, because this will greatly damage the life of the artillery, in addition, the consumption of the artillery's body is also very large, and the accuracy of the hit will also be greatly reduced.

Therefore, unless the battle situation is very urgent, the general artillery crew will not burst the rate of fire, but use a long period of uniform fire, about one round per minute.

On the one hand, it is because the training of his artillery crew is still lacking, and it cannot be compared with those gunners abroad who have been trained for many years, but on the other hand, it is also related to the order of free fire.

Yu Shengjun didn't plan to attack the city directly today, but just used artillery to carry out artillery bombardment, so the requirements for rapid fire of artillery are not high, so these artillerymen are also taking their time slowly, slowing down the rate of fire while pursuing higher hit accuracy.

After the proofreading of the shooting, Han Shan once again gave the order to open fire.

And this time the cannonball fired did not live up to Han Shan's expectations, this cannonball did not hit the middle and lower part of the city wall, nor did it fly directly over the city, but hit the battlements on the city wall, directly hitting a gap in the battlements.

The fragments of rubble shattered by the shells flew everywhere, and they actually hit a nearby knife club rebel gun, and the flying rubble swept away the members of the artillery crew, and its effect was no less than the accurate hit of the howitzer.

When the artillery commanded by Han Shan successfully killed and injured more than ten rebel soldiers, another artillery not far away also accurately hit a cannon that the knife would be placed on the city, and before it had time to open a cannon, a huge solid ball shell directly hit the artillery, and the impact force of the distance smashed the artillery carriage of the gun, and killed and injured many members of the artillery crew.

At the same time, several other artillery pieces continued to bombard the city gate tower, which was a better target than the battlements, and at first there were several small knives that seemed to be of high status to the rebel generals, but they disappeared soon after being shelled, and several artillery guns bombarded in turn, and soon destroyed the wooden gate tower.

Half an hour later, multiple rounds of artillery shelled the city gates of Shanghai's west gates, and it didn't take long for those two gates to be shattered.

In Lin Zhe's telescope, after the city gate was blasted open, a large number of small knife rebels appeared behind the city gate, and then directly blocked the gap in the city gate with wood, sand and stones.

Seeing this, Lin Zhe knew that when he attacked the city in the future, it would definitely not work to take the city gate, and people didn't expect to use the city gate to guard it at all, but directly blocked the city gate with sand and stones.

If you want to attack the city, the most effective and the only way is to climb the city walls!

But if the soldiers climb the city wall directly with the ladder, I am afraid that they will suffer a lot of casualties from the enemy, after all, after going to the head of the city, their own soldiers will fall into the situation of hand-to-hand combat with the enemy, even if their own soldiers fight bayonets are not bad, but this hand-to-hand combat will also suffer a lot of casualties.

And too many casualties have always been avoided by Lin Zhe.

In this case, Bi Yutong, who rarely put forward his own opinions on strategy and tactics, rarely played the role of a staff member, and he said: "You can build a kind of mobile platform that is the same height as the city wall or slightly higher, and after the soldiers climb the height, they can directly suppress the enemy at the head of the city 300 steps away from the city wall!" ”

This Jian yì did not say that he would climb the city wall directly, but that he wanted to offset the enemy's advantage in the height of the city wall, but let the soldiers stand on a high platform and shoot suppressively at the enemy at the head of the city, and the core of it was to give full play to their own firepower advantage.

After hearing about this construction, Lin Zhe felt that it was feasible, there were tens of thousands of thieves in the city of Shanghai, and people were holding on to it and couldn't come out to fight a field battle with him Lin Zhe, as for Lin Zhe himself, he was afraid that the troops would suffer too many casualties and directly climbed the wall to attack the city, which is not a good thing to stalemate.

Bi Yutong's construction is not very difficult to implement, isn't it just to build a few mobile platforms, which is difficult for Yu Shengjun and it won't take a few days.

Therefore, after shelling the county seat of Shanghai for a morning, Lin Zhe let Fu Linyang's artillery unit fight freely, that is, he no longer forcibly asked the artillery unit to shell the thief army, but the artillery unit fought whenever it felt suitable.

At the same time, new camps and fortifications were built directly outside the city at a distance of about a kilometer, so as to reduce the starting distance of the subsequent siege.

In addition, Yu Shengjun also sent men and horses to the surrounding areas to recruit people, timber and other materials to build a mobile platform for siege.

Wu Jianzhang, a member of the Su Song Taidao who ran out of the concession to watch the battle, heard that Yu Shengjun was going to build a mobile high platform, and immediately expressed his willingness to provide a convenience.

Wu Jianzhang originally thought that Yu Shengjun would delay for a period of time before attacking the city, but he didn't expect that just after a day of shelling, Lin Zhe said that he wanted to build a high platform, why did he build a high platform? It's not for the siege yet.

It is conceivable that once a large number of mobile platforms are built, Yu Shengjun will launch a formal siege operation.

Wu Jianzhang, who was eager to recapture Shanghai City tomorrow, naturally needed to support Lin Zhe's actions, and without Lin Zhe opening his mouth, he himself sent someone to send a large amount of wood and carpenters.

At the same time, he also told Lin Zhe that he had negotiated with the foreigners and was ready to hire several foreigner ships to join his fleet, and that he would be able to enter the Huangpu River in the next few days, and then he would be able to launch an attack on Shanghai City from above the Huangpu River, so as to cooperate with Yu Shengjun's attack on Shanghai City.

For Wu Jianzhang's active cooperation, Lin Zhe naturally smiled happily, and he also knew that Wu Jianzhang was now in trouble and urgently needed to recapture Shanghai to keep his official hat, and Yu Shengjun himself also wanted to take Shanghai City to take away a lot of loot.

Therefore, from these perspectives, Lin Zhe and the officials in Jiangsu, especially this Wu Jianzhang, have common interests and common goals.

Yu Shengjun temporarily stopped the siege of the city, but Fu Linyang's artillery did not stop the shelling, often day and night, from time to time, to harass the enemy troops in the city.

Among them, the focus was on the artillery deployed by the Knife Society on the head of the city, and on the day of the shelling, they knocked out five of their artillery, and on the second and third days of the next day, Fu Linyang's artillery successfully destroyed the remaining artillery of the Knife Society's rebel army.

By the fourth day, Fu Linyang's telescope could no longer see the artillery deployed by the enemy army on the city, it was possible that it was all shot by himself, or it was possible that the rest was hidden, as for the truth, we will not know until later.

In the past few days, Yu Shengjun was also counterattacked by the Little Knife Society, and about 500 Little Knife Society rebels went out of the city in the second half of the night and tried to attack Yu Shengjun's camp at night, but they were found hundreds of meters away from Yu Shengjun's camp.

In the end, before the other soldiers of the Yu Sheng Army had time to get up and participate in the battle, the two infantry companies on duty directly repelled the rebel army.

After dawn the next day, Yu Shengjun learned that they had killed at least 100 Knife Society rebels last night, as for why they knew, because the bodies of these Knife Society rebels who were killed last night were still outside the camp.

Hearing this news, Lin Zhe didn't care, but Shi Langyi directly showed disdain: "Even these wastes want to attack us at night?" I really think I'm three-headed and six-armed! ”

Shi Langyi's disdain is justified, the night attack is not so easy to fight in these years.

What's more, Yu Shengjun's camp has always been complete and tight, when Lin Chengting led the six thousand Taiping Army regular troops in Si'an, they didn't have the courage to launch a night attack on Yu Shengjun's camp, and these bandit and rogue troops under Liu Lichuan dared to play like this, didn't they look for their own death?

If the Knife Society rebels come to attack at night a few more times, it is estimated that without Yu Shengjun's initiative to attack the city, they themselves will collapse directly!

Yu Shengjun launched a continuous harassment and artillery bombardment of the county seat of Shanghai, and destroyed the artillery in Shanghai one by one, at least on the side of the West City Gate, there was no trace of the artillery of the Little Knife Society, and the Little Knife Society launched an unsuccessful night attack.

The carpenters and people collected by Yu Shengjun were rushing to make high trolleys day and night.

When time passed day by day, Lin Zhe also received news that Xu Naizhao, who had been tossing between Taicang and Suzhou, finally led the Qing army to Shanghai.

In the past half a month, Xu Naizhao didn't know if it was because he really didn't dare to fight with the rebel army of the Little Knife Society, or because he had paid to hire Yu Shengjun, he would let Yu Shengjun fight, when Yu Shengjun fought from Qingpu to Jiading, and then Baoshan and Shanghai, Xu Naizhao had 3,000 troops, but he was hiding in Taicang and Kunshan and refused to come out.

It wasn't until Lin Zhe led Yu Sheng's army to attack Shanghai that he came slowly towards Shanghai, and the marching speed was extremely slow.

However, Lin Zhe knew that no matter how slow Xu Naizhao's 3,000 troops were, it was estimated that it would not take a few days to reach Shanghai.

In case Xu Naizhao wants to share the spoils with himself at that time, will he give it or not?

Moreover, if Xu Naizhao asked in the name of the imperial court to ask for the return of the silver that was originally deposited in the treasury of Shanghai Daotai Mansion and Jianghai Customs, would he give it himself or not?

It is impossible to give, but if you don't give it, it will also cause trouble, and if you completely fall out with Xu Naizhao and Wu Jianzhang, it will not be good for your future development.

Thinking of this, Lin Zhe knew that this Shanghai could not continue to drag on, and when Xu Naizhao also arrived in Shanghai, I was afraid that there would be a lot of unnecessary troubles.

Over time, it will change!

Thinking of this, Lin Zhe called Xu Pengan in: "What did those mobile platforms look like?" ”