如何在玉模板中使用else語句？

Question

node.js新手我使用快遞生成了一個簡單的網站。我已經添加了以下文字index.jade：

raining = true 
if(raining === true)  
    p It is raining. Take an umbrella! 
else 
    p No rain. Take the bike! 

當我註釋掉最後兩個語句，我得到預期的迴應：「下雨了帶上雨傘。！」

當我包括最後兩行，我得到一個意外的標記錯誤：

Unexpected token (57:0) 

SyntaxError: Unexpected token (57:0) 
at Parser.pp.raise (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:943:13) 
at Parser.pp.unexpected (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:1503:8) 
at Parser.pp.parseExprAtom (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:327:12) 
at Parser.pp.parseExprSubscripts (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:216:19) 
at Parser.pp.parseMaybeUnary (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:197:19) 
at Parser.pp.parseExprOps (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:151:19) 
at Parser.pp.parseMaybeConditional (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:133:19) 
at Parser.pp.parseMaybeAssign (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:110:19) 
at Parser.pp.parseExpression (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:86:19) 
at Parser.pp.parseStatement (/home/ubuntu/workspace/node_modules/jade/node_modules/with/node_modules/acorn-globals/node_modules/acorn/dist/acorn.js:1750:23) 

不知道爲什麼else語句列入可能導致錯誤。任何建議將不勝感激。

Answer 1

小心縮進：

這裏有一個例子

http://jsfiddle.net/heanfig/z8wn5qz9/

檢查玉參考

http://learnjade.com/tour/conditionals/

- var raining = true 
if raining == true 
     p It is raining. Take an umbrella! 
else 
     p No rain. Take the bike! 

甚至：

| #{raining ? raining : 'man'}