Question

到目前为止，我的代码存在的问题是，当我从选择中输入精灵时，出现错误，指出参数必须是表面而非字符串。我想知道如何解决此问题。我正在尝试做的是让用户从以下SP1R，SP1O等中选择一个精灵。但是在我输入了其中一个精灵之后，程序不接受它，并且出现以下错误：

var market1h = 'not yet defined';
var market5m = 'not yet defined';

binance.prevDay(false, (error, prevDay) => {
    let markets = [];
    for ( let obj of prevDay ) {
        let symbol = obj.symbol;
        markets.push(symbol);
    }
    setInterval(get1hData, 1500);
    setInterval(get5mData, 1200);

    function get1hData(){
        binance.websockets.candlesticks(markets, '1h', (candlestickData) => {
        let tick = binance.last(candlestickData);
        market1h = candlestickData[tick];
        io.emit('market1h', market1h);
        });
    }
    function get5mData(){
        binance.websockets.candlesticks(markets, '5m', (candlestickData) => {
        let tick = binance.last(candlestickData);
        market5m = candlestickData[tick];
        io.emit("market5m", market5m);
        });
    }
});

Traceback (most recent call last):  
File "C:\Users\User\Documents\Pygame\pygame1.py", line 90, in <module>
drawGrid()  
File "C:\Users\User\Documents\Pygame\pygame1.py", line 60, in drawGrid
win.blit (UserSprite, (500, 500))  
TypeError: argument 1 must be pygame.Surface, not str

Answer 1

输入后

UserSprite = input("""Choose a sprite [...]""")

变量UserSprite的内容是一个字符串。您必须找到名称存储在变量UserSprite中的变量。
当调用不带任何参数的内置字典vars()时，可以使用局部变量获取字典。这意味着vars()["SP1R"]将返回对象SP1R。

SpriteName = input("""Choose a sprite [...]""")
UserSprite = vars()[SpriteName] if SpriteName in vars() else None

Pygame参数2必须是pygame.surface而不是str

1 个答案: