已解决。这段代码在iOS端执行的时候，有些字符可能无法识别导致的问题。 decodeHtml(str) { if (typeof str != "string") { return str; } if (str == null || str.length == 0) return ""; str = str.replace(/ /g, ' '); str = str.replace(/¡/g, '¡'); str = str.replace(/¢/g, '¢'); str = str.replace(/£/g, '£'); str = str.replace(/¤/g, '¤'); str = str.replace(/¥/g, '¥'); str = str.replace(/¦/g, '¦'); str = str.replace(/§/g, '§'); str = str.replace(/¨/g, '¨'); str = str.replace(/©/g, '©'); str = str.replace(/ª/g, 'ª'); str = str.replace(/«/g, '«'); str = str.replace(/¬/g, '¬'); str = str.replace(/­/g, '­'); str = str.replace(/®/g, '®'); str = str.replace(/¯/g, '¯'); str = str.replace(/°/g, '°'); str = str.replace(/±/g, '±'); str = str.replace(/²/g, '²'); str = str.replace(/³/g, '³'); str = str.replace(/´/g, '´'); str = str.replace(/µ/g, 'µ'); str = str.replace(/¶/g, '¶'); str = str.replace(/·/g, '·'); str = str.replace(/¸/g, '¸'); str = str.replace(/¹/g, '¹'); str = str.replace(/º/g, 'º'); str = str.replace(/»/g, '»'); str = str.replace(/¼/g, '¼'); str = str.replace(/½/g, '½'); str = str.replace(/¾/g, '¾'); str = str.replace(/¿/g, '¿'); str = str.replace(/À/g, 'À'); str = str.replace(/Á/g, 'Á'); str = str.replace(/Â/g, 'Â'); str = str.replace(/Ã/g, 'Ã'); str = str.replace(/Ä/g, 'Ä'); str = str.replace(/Å/g, 'Å'); str = str.replace(/Æ/g, 'Æ'); str = str.replace(/Ç/g, 'Ç'); str = str.replace(/È/g, 'È'); str = str.replace(/É/g, 'É'); str = str.replace(/Ê/g, 'Ê'); str = str.replace(/Ë/g, 'Ë'); str = str.replace(/Ì/g, 'Ì'); str = str.replace(/Í/g, 'Í'); str = str.replace(/Î/g, 'Î'); str = str.replace(/Ï/g, 'Ï'); str = str.replace(/Ð/g, 'Ð'); str = str.replace(/Ñ/g, 'Ñ'); str = str.replace(/Ò/g, 'Ò'); str = str.replace(/Ó/g, 'Ó'); str = str.replace(/Ô/g, 'Ô'); str = str.replace(/Õ/g, 'Õ'); str = str.replace(/Ö/g, 'Ö'); str = str.replace(/×/g, '×'); str = str.replace(/Ø/g, 'Ø'); str = str.replace(/Ù/g, 'Ù'); str = str.replace(/Ú/g, 'Ú'); str = str.replace(/Û/g, 'Û'); str = str.replace(/Ü/g, 'Ü'); str = str.replace(/Ý/g, 'Ý'); str = str.replace(/Þ/g, 'Þ'); str = str.replace(/ß/g, 'ß'); str = str.replace(/à/g, 'à'); str = str.replace(/á/g, 'á'); str = str.replace(/â/g, 'â'); str = str.replace(/ã/g, 'ã'); str = str.replace(/ä/g, 'ä'); str = str.replace(/å/g, 'å'); str = str.replace(/æ/g, 'æ'); str = str.replace(/ç/g, 'ç'); str = str.replace(/è/g, 'è'); str = str.replace(/é/g, 'é'); str = str.replace(/ê/g, 'ê'); str = str.replace(/ë/g, 'ë'); str = str.replace(/ì/g, 'ì'); str = str.replace(/í/g, 'í'); str = str.replace(/î/g, 'î'); str = str.replace(/ï/g, 'ï'); str = str.replace(/ð/g, 'ð'); str = str.replace(/ñ/g, 'ñ'); str = str.replace(/ò/g, 'ò'); str = str.replace(/ó/g, 'ó'); str = str.replace(/ô/g, 'ô'); str = str.replace(/õ/g, 'õ'); str = str.replace(/ö/g, 'ö'); str = str.replace(/÷/g, '÷'); str = str.replace(/ø/g, 'ø'); str = str.replace(/ù/g, 'ù'); str = str.replace(/ú/g, 'ú'); str = str.replace(/û/g, 'û'); str = str.replace(/ü/g, 'ü'); str = str.replace(/ý/g, 'ý'); str = str.replace(/þ/g, 'þ'); str = str.replace(/ÿ/g, 'ÿ'); str = str.replace(/ƒ/g, 'ƒ'); str = str.replace(/Α/g, 'Α'); str = str.replace(/Β/g, 'Β'); str = str.replace(/Γ/g, 'Γ'); str = str.replace(/Δ/g, 'Δ'); str = str.replace(/Ε/g, 'Ε'); str = str.replace(/Ζ/g, 'Ζ'); str = str.replace(/Η/g, 'Η'); str = str.replace(/Θ/g, 'Θ'); str = str.replace(/Ι/g, 'Ι'); str = str.replace(/Κ/g, 'Κ'); str = str.replace(/Λ/g, 'Λ'); str = str.replace(/Μ/g, 'Μ'); str = str.replace(/Ν/g, 'Ν'); str = str.replace(/Ξ/g, 'Ξ'); str = str.replace(/Ο/g, 'Ο'); str = str.replace(/Π/g, 'Π'); str = str.replace(/Ρ/g, 'Ρ'); str = str.replace(/Σ/g, 'Σ'); str = str.replace(/Τ/g, 'Τ'); str = str.replace(/Υ/g, 'Υ'); str = str.replace(/Φ/g, 'Φ'); str = str.replace(/Χ/g, 'Χ'); str = str.replace(/Ψ/g, 'Ψ'); str = str.replace(/Ω/g, 'Ω'); str = str.replace(/α/g, 'α'); str = str.replace(/β/g, 'β'); str = str.replace(/γ/g, 'γ'); str = str.replace(/δ/g, 'δ'); str = str.replace(/ε/g, 'ε'); str = str.replace(/ζ/g, 'ζ'); str = str.replace(/η/g, 'η'); str = str.replace(/θ/g, 'θ'); str = str.replace(/ι/g, 'ι'); str = str.replace(/κ/g, 'κ'); str = str.replace(/λ/g, 'λ'); str = str.replace(/μ/g, 'μ'); str = str.replace(/ν/g, 'ν'); str = str.replace(/ξ/g, 'ξ'); str = str.replace(/ο/g, 'ο'); str = str.replace(/π/g, 'π'); str = str.replace(/ρ/g, 'ρ'); str = str.replace(/ς/g, 'ς'); str = str.replace(/σ/g, 'σ'); str = str.replace(/τ/g, 'τ'); str = str.replace(/υ/g, 'υ'); str = str.replace(/φ/g, 'φ'); str = str.replace(/χ/g, 'χ'); str = str.replace(/ψ/g, 'ψ'); str = str.replace(/ω/g, 'ω'); str = str.replace(/ϑ/g, 'ϑ'); str = str.replace(/ϒ/g, 'ϒ'); str = str.replace(/ϖ/g, 'ϖ'); str = str.replace(/•/g, '•'); str = str.replace(/…/g, '…'); str = str.replace(/′/g, '′'); str = str.replace(/″/g, '″'); str = str.replace(/‾/g, '‾'); str = str.replace(/⁄/g, '⁄'); str = str.replace(/℘/g, '℘'); str = str.replace(/ℑ/g, 'ℑ'); str = str.replace(/ℜ/g, 'ℜ'); str = str.replace(/™/g, '™'); str = str.replace(/ℵ/g, 'ℵ'); str = str.replace(/←/g, '←'); str = str.replace(/↑/g, '↑'); str = str.replace(/→/g, '→'); str = str.replace(/↓/g, '↓'); str = str.replace(/↔/g, '↔'); str = str.replace(/↵/g, '↵'); str = str.replace(/⇐/g, '⇐'); str = str.replace(/⇑/g, '⇑'); str = str.replace(/⇒/g, '⇒'); str = str.replace(/⇓/g, '⇓'); str = str.replace(/⇔/g, '⇔'); str = str.replace(/∀/g, '∀'); str = str.replace(/∂/g, '∂'); str = str.replace(/∃/g, '∃'); str = str.replace(/∅/g, '∅'); str = str.replace(/∇/g, '∇'); str = str.replace(/∈/g, '∈'); str = str.replace(/∉/g, '∉'); str = str.replace(/∋/g, '∋'); str = str.replace(/∏/g, '∏'); str = str.replace(/∑/g, '∑'); str = str.replace(/−/g, '−'); str = str.replace(/∗/g, '∗'); str = str.replace(/√/g, '√'); str = str.replace(/∝/g, '∝'); str = str.replace(/∞/g, '∞'); str = str.replace(/∠/g, '∠'); str = str.replace(/∧/g, '∧'); str = str.replace(/∨/g, '∨'); str = str.replace(/∩/g, '∩'); str = str.replace(/∪/g, '∪'); str = str.replace(/∫/g, '∫'); str = str.replace(/∴/g, '∴'); str = str.replace(/∼/g, '∼'); str = str.replace(/≅/g, '≅'); str = str.replace(/≈/g, '≈'); str = str.replace(/≠/g, '≠'); str = str.replace(/≡/g, '≡'); str = str.replace(/≤/g, '≤'); str = str.replace(/≥/g, '≥'); str = str.replace(/⊂/g, '⊂'); str = str.replace(/⊃/g, '⊃'); str = str.replace(/⊄/g, '⊄'); str = str.replace(/⊆/g, '⊆'); str = str.replace(/⊇/g, '⊇'); str = str.replace(/⊕/g, '⊕'); str = str.replace(/⊗/g, '⊗'); str = str.replace(/⊥/g, '⊥'); str = str.replace(/⋅/g, '⋅'); str = str.replace(/⌈/g, '⌈'); str = str.replace(/⌉/g, '⌉'); str = str.replace(/⌊/g, '⌊'); str = str.replace(/⌋/g, '⌋'); str = str.replace(/⟨/g, '〈'); str = str.replace(/⟩/g, '〉'); str = str.replace(/◊/g, '◊'); str = str.replace(/♠/g, '♠'); str = str.replace(/♣/g, '♣'); str = str.replace(/♥/g, '♥'); str = str.replace(/♦/g, '♦'); str = str.replace(/Œ/g, 'Œ'); str = str.replace(/œ/g, 'œ'); str = str.replace(/Š/g, 'Š'); str = str.replace(/š/g, 'š'); str = str.replace(/Ÿ/g, 'Ÿ'); str = str.replace(/ˆ/g, 'ˆ'); str = str.replace(/˜/g, '˜'); str = str.replace(/ /g, ' '); str = str.replace(/ /g, ' '); str = str.replace(/ /g, ' '); str = str.replace(/‌/g, '‌'); str = str.replace(/‍/g, '‍'); str = str.replace(/‎/g, '‎'); str = str.replace(/‏/g, '‏'); str = str.replace(/–/g, '–'); str = str.replace(/—/g, '—'); str = str.replace(/‘/g, '‘'); str = str.replace(/’/g, '’'); str = str.replace(/‚/g, '‚'); str = str.replace(/“/g, '“'); str = str.replace(/”/g, '”'); str = str.replace(/„/g, '„'); str = str.replace(/†/g, '†'); str = str.replace(/‡/g, '‡'); str = str.replace(/‰/g, '‰'); str = str.replace(/‹/g, '‹'); str = str.replace(/›/g, '›'); str = str.replace(/€/g, '€'); str = str.replace(/"/g, '"'); str = str.replace(/</g, '<'); str = str.replace(/>/g, '>'); str = str.replace(/'/g, '\''); str = str.replace(/'/g, '\''); str = str.replace(/&/g, '&'); return str; }