What happened? . ? Knock on my brother's hand? In a day, there is only one level of support and resistance, that is, the highest price and the lowest price of the day, and the closing price determines the direction of the market. If we want to reach a higher level in technical analysis, we can only say what level the market support level and resistance level should be in a certain period of time. 1. Foreign huitong financial investment training experts believe that the following methods can be used to judge the support and resistance of the market in a certain period of time, 1, and the angle line extending from the top or bottom of the market in the past. 2. A horizontal line extending from the top or bottom of the market. 3. Time cycle. 4. Angle line extending from the important top (bottom) of the market. The important top (bottom) part refers to the position where the trend changes, such as 2245 points, 1783 points and 998 points. These positions have different meanings from the common top and bottom. 5. Angle lines extending from the double bottom (top) or the triple bottom (top) and intersecting. 6. Double bottom (top) or triple bottom (top) level of the market. 7. Past resistance level of the market (history). 8. The level of the day with the largest turnover. 9. When time and price are balanced. You need to make a note in this sentence. "When time and price form a square, the turning point is just around the corner", which can be judged by many time and price analysis tools. As common sense, understanding and use need not be so complicated, and it is easier to understand with wave theory. Time is as important as price. Don't always count money, that's what fools do. Pay attention to support, pressure and trends. The safest entry and exit point is the "imbalance" between time and price in the market. There are three key points (for buying points, the selling point is opposite) (1), which is the top of the weekly chart of the market price. The range of this past exceeds the range of every rebound since the top of the market price, so investors can buy when the market price is adjusted. (2) When the market price rebounds at the lowest level and the rebound time exceeds the longest rebound time since the market fell, it can be considered that the downward trend has changed and investors can buy when the market price is adjusted. (3) The important principle of buying and selling is firstly homeopathic buying and selling, and secondly "time purchase price is over-balanced" buying and selling. (4) For the chart forms, that is, the usual spire (bottom), double top (bottom), flat top (bottom), three top (bottom), four top (bottom) and multiple top (bottom), analysts need to pay attention to the trend segmentation theory, that is, wave theory, and think that a rising or falling market usually has 3-4 waves of rising or falling, and the main running direction is. Therefore, when analyzing the turning pattern, it is necessary to determine in advance the third wave or the fourth wave that the market is already in the main running trend, so as to avoid making mistakes or making fewer mistakes in the analysis. At this time, we should pay attention to the confirmation of the trend by the volume. Volume is the point of view. (5) Pay close attention to the breakthrough forms of the conversion trend, namely, the signal reversal day (one-day reversal with high opening and low going) and the gap (the first gap up and down). Second, the calculation method of market support level and resistance level: (1) Observing the closing price, the closing price must fall below the resistance level or above to be considered as a breakthrough. Usually the market likes to close below the resistance level. (2) Observe the opening price. At the opening, the market usually likes to go beyond the level of market support and resistance by gap. This usually happens when the trend turns. (3) Observe the closing price for 3 days. Higher and higher means higher. (4) Observe the closing price for 7- 10 days. If the price rises by 7- 10 days, there will usually be a short-term reversal (adjustment). or vice versa, Dallas to the auditorium