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创建页面，内容为“{{#iferror: {{#expr: 1 + {{{data|}}} }} | {{{data|}}} <!--Not a number, return "data" as is--> | {{{ {{{data|}}} |}}} <!--"data" is a number, return that numbe…”
{{#iferror: {{#expr: 1 + {{{data|}}} }}
| {{{data|}}} <!--Not a number, return "data" as is-->
| {{{ {{{data|}}} |}}} <!--"data" is a number, return that numbered parameter-->
}}
| {{{data|}}} <!--Not a number, return "data" as is-->
| {{{ {{{data|}}} |}}} <!--"data" is a number, return that numbered parameter-->
}}