利用python求解知道一点经纬度和距离另一点经度,求纬度

可以使用haversine公式来计算出两点之间的距离，该公式需要知道两点的经纬度坐标。然后，可以使用以下代码来计算出另一点的纬度：

from math import radians, cos, sin, asin, sqrt

def haversine(lon1, lat1, lon2, lat2):
    """
    Calculate the great circle distance between two points 
    on the earth (specified in decimal degrees)
    """
    # convert decimal degrees to radians 
    lon1, lat1, lon2, lat2 = map(radians, [lon1, lat1, lon2, lat2])

    # haversine formula 
    dlon = lon2 - lon1 
    dlat = lat2 - lat1 
    a = sin(dlat/2)**2 + cos(lat1) * cos(lat2) * sin(dlon/2)**2
    c = 2 * asin(sqrt(a)) 
    r = 6371 # Radius of earth in kilometers. Use 3956 for miles
    return c * r

# 例子
lat1, lon1 = 39.9042, 116.4074 # 北京的经纬度
distance = 100 # 100km的距离
bearing = 90 # 朝东方向
R = 6371 # 地球半径

# 计算出另一点的经度
lon2 = lon1 + (distance / (R * cos(radians(lat1)))) * cos(radians(bearing))

# 计算出另一点的纬度
lat2 = lat1 + (distance / R) * sin(radians(bearing))

其中，`lat1`和`lon1`是已知的经纬度坐标，`distance`是已知的距离，`bearing`是朝向，`R`是地球半径。该代码将返回另一点的纬度 `lat2`。